Moderating effect of emotional awareness on the association between maltreatment experiences and resilience. Sang Won Lee, Seunghee Won, Bumseok Jeong. Personality and Individual Differences, Volume 148, 1 October 2019, Pages 38-44. https://doi.org/10.1016/j.paid.2019.05.037
Abstract: Childhood maltreatment experiences are closely related to aberrant emotional processing that may be associated with resilience. Although different stages of emotion processing, such as identification of emotion, selection of regulation strategies, and implementation of regulation strategies, can be affected by maltreatment experiences, it is still unclear which part of emotion processing is closely associated with the vulnerability the victims have. In this study, we investigated the effects of different emotion regulation strategies on psychological resilience. Among a total of 360 participants, 89 maltreatment and 112 no-maltreatment subjects were included in the analysis of a questionnaire survey. An additional cognitive reappraisal task was conducted in 25 maltreatment and 25 age-, gender-, and education-matched no-maltreatment subjects. The maltreatment group reported greater difficulties in identifying emotion, such as lack of emotional awareness or clarity. Moderation analysis revealed that lack of emotional awareness has a significant effect on the relationship between childhood maltreatment experiences and low psychological resilience. In the cognitive reappraisal task, the maltreatment subjects reported higher negative valence scores on ambiguous neutral pictures than the no-maltreatment subjects. Our results suggest that difficulties in emotional awareness, especially with ambiguous emotional cues, play a crucial role in low resilience in maltreatment victims.
Wednesday, May 29, 2019
Tuesday, May 28, 2019
When forecasting another individual's actions' outcome, we systematically overestimate the probability that the individual will win; due to a belief that the others generally achieve their intentions
Kupor, D., Brucks, M. S., & Huang, S.-C. (2019). And the winner is . . . ? Forecasting the outcome of others’ competitive efforts. Journal of Personality and Social Psychology, http://dx.doi.org/10.1037/pspa0000165
Abstract: People frequently forecast the outcomes of competitive events. Some forecasts are about oneself (e.g., forecasting how one will perform in an athletic competition, school or job application, or professional contest), while many other forecasts are about others (e.g., predicting the outcome of another individual’s athletic competition, school or job application, or professional contest). In this research, we examine people’s forecasts about others’ competitive outcomes, illuminate a systematic bias in these forecasts, and document the source of this bias as well as its downstream consequences. Eight experiments with a total of 3,219 participants in a variety of competitive contexts demonstrate that when observers forecast the outcome that another individual will experience, observers systematically overestimate the probability that this individual will win. This misprediction stems from a previously undocumented lay belief—the belief that other people generally achieve their intentions—that skews observers’ hypothesis testing. We find that this lay belief biases observers’ forecasts even in contexts in which the other person’s intent is unlikely to generate the person’s intended outcome, and even when observers are directly incentivized to formulate an accurate forecast.
Abstract: People frequently forecast the outcomes of competitive events. Some forecasts are about oneself (e.g., forecasting how one will perform in an athletic competition, school or job application, or professional contest), while many other forecasts are about others (e.g., predicting the outcome of another individual’s athletic competition, school or job application, or professional contest). In this research, we examine people’s forecasts about others’ competitive outcomes, illuminate a systematic bias in these forecasts, and document the source of this bias as well as its downstream consequences. Eight experiments with a total of 3,219 participants in a variety of competitive contexts demonstrate that when observers forecast the outcome that another individual will experience, observers systematically overestimate the probability that this individual will win. This misprediction stems from a previously undocumented lay belief—the belief that other people generally achieve their intentions—that skews observers’ hypothesis testing. We find that this lay belief biases observers’ forecasts even in contexts in which the other person’s intent is unlikely to generate the person’s intended outcome, and even when observers are directly incentivized to formulate an accurate forecast.
We find that people showed a relative preference for lighter cultural products during relatively negative economic times, and, to a lesser extent, were slightly more open to heavier cultural products during boom periods
Hershfield, H. E., & Alter, A. L. (2019). On the naturalistic relationship between mood and entertainment choice. Journal of Experimental Psychology: Applied. http://dx.doi.org/10.1037/xap0000220
Abstract: People are sensitive to economic conditions, buying more during booms and less during recessions. Across seven studies, the present research examines whether the nature of their purchases also changes as diffuse, prevailing mood states shift from positive during boom periods to negative during recession periods. Existing research shows that people primarily strive to improve negative moods, whereas they are willing to encounter threatening information when they experience positive mood states. Consistent with these patterns, we find that people showed a relative preference for lighter cultural products during relatively negative economic times, and, to a lesser extent, were slightly more open to heavier cultural products during boom periods. According to archival dataset analyses, these effects persisted across comedic cartoons, music, books, and films. In 2 lab experiments, writing about boom versus recession periods changed preferences for lighter versus heavier cultural products.
Abstract: People are sensitive to economic conditions, buying more during booms and less during recessions. Across seven studies, the present research examines whether the nature of their purchases also changes as diffuse, prevailing mood states shift from positive during boom periods to negative during recession periods. Existing research shows that people primarily strive to improve negative moods, whereas they are willing to encounter threatening information when they experience positive mood states. Consistent with these patterns, we find that people showed a relative preference for lighter cultural products during relatively negative economic times, and, to a lesser extent, were slightly more open to heavier cultural products during boom periods. According to archival dataset analyses, these effects persisted across comedic cartoons, music, books, and films. In 2 lab experiments, writing about boom versus recession periods changed preferences for lighter versus heavier cultural products.
Nationally representative sample: Buying sex is a relatively rare phenomenon among adult males; however, when accounting for multiple purchases & extrapolating to the entire population the estimated purchases is in the millions
Estimating the sex buying behavior of adult males in the United States: List experiment and direct question estimates. Dominique Roe-Sepowitz et al. Journal of Criminal Justice, Volume 63, July–August 2019, Pages 41-48. https://doi.org/10.1016/j.jcrimjus.2019.04.005
Highlights
• Estimates from both the double list experiment and the direct ask question indicate 2–4% of men in the U.S. pay for sex.
• Of the men who admit to paying for sex from a prostitute in the past 3 years, most say they have done so multiple times.
• Applying this method to the general population results in an estimate of 4 million adult men purchasing sex in the past 3 years.
• 2/3 of the sample reported purchasing sex in person (as opposed to online).
Abstract
Purpose: Estimating the size of the sex buyer market in the United States has been stymied by methodological and sampling challenges. Given known methodological issues in self-reporting and the sensitive nature of purchasing sex, current research faces challenges in providing estimates of demand for purchasing sex. This study used a unique approach to estimate the prevalence of sex buying by men over the age of 18 in the United States.
Methods: This study employed a double list experiment and a direct ask question to a nationally representative sample of 2525 adult males to estimate the size of the sex buyer market in the United States.
Results: The double list experiment found the prevalence of sex purchasing is roughly 1 of every 50 adult males in the U.S. (2%) over the 3 years. The direct ask questions found that roughly 1 of every 25 males in the U.S. (4%) had purchased sex in the past 3 years. How they purchased and who they purchased sex from was also explored. A total of 80 respondents reported buying sex during the past 3 years. They spent an average of $120 for their most recent sex-buying encounter. Most sex buyers reported buying sex from an offline venue (street, bar, or massage parlor) and 81% purchased sex from a female. Applying the estimate of sex buying behavior to the general male population in the U.S. results in approximately 4 million men over the age of 18 purchasing sex the past 3 years.
Conclusions: The findings from both the double list experiment and the direct ask question indicate that buying sex is a relatively rare phenomenon among adult males, however, when accounting for multiple purchases and extrapolating to the entire population the estimated purchases is in the millions. Applying the double list experiment and a direct ask question to a nationally representative sample provides a new way to capture estimates while addressing some of the limitations of previous methods. Such findings have implications for both the criminal justice and public health sectors.
Highlights
• Estimates from both the double list experiment and the direct ask question indicate 2–4% of men in the U.S. pay for sex.
• Of the men who admit to paying for sex from a prostitute in the past 3 years, most say they have done so multiple times.
• Applying this method to the general population results in an estimate of 4 million adult men purchasing sex in the past 3 years.
• 2/3 of the sample reported purchasing sex in person (as opposed to online).
Abstract
Purpose: Estimating the size of the sex buyer market in the United States has been stymied by methodological and sampling challenges. Given known methodological issues in self-reporting and the sensitive nature of purchasing sex, current research faces challenges in providing estimates of demand for purchasing sex. This study used a unique approach to estimate the prevalence of sex buying by men over the age of 18 in the United States.
Methods: This study employed a double list experiment and a direct ask question to a nationally representative sample of 2525 adult males to estimate the size of the sex buyer market in the United States.
Results: The double list experiment found the prevalence of sex purchasing is roughly 1 of every 50 adult males in the U.S. (2%) over the 3 years. The direct ask questions found that roughly 1 of every 25 males in the U.S. (4%) had purchased sex in the past 3 years. How they purchased and who they purchased sex from was also explored. A total of 80 respondents reported buying sex during the past 3 years. They spent an average of $120 for their most recent sex-buying encounter. Most sex buyers reported buying sex from an offline venue (street, bar, or massage parlor) and 81% purchased sex from a female. Applying the estimate of sex buying behavior to the general male population in the U.S. results in approximately 4 million men over the age of 18 purchasing sex the past 3 years.
Conclusions: The findings from both the double list experiment and the direct ask question indicate that buying sex is a relatively rare phenomenon among adult males, however, when accounting for multiple purchases and extrapolating to the entire population the estimated purchases is in the millions. Applying the double list experiment and a direct ask question to a nationally representative sample provides a new way to capture estimates while addressing some of the limitations of previous methods. Such findings have implications for both the criminal justice and public health sectors.
Children did not engage in third-party corporal punishment, even though they evaluated antisocial puppets as mean & understood that pressing the hit button hurt the puppets; the children lack a strong desire to corporally punish 3rd-parties
The development of corporal third-party punishment. Julia Marshall et al. Cognition, Volume 190, September 2019, Pages 221-229. https://doi.org/10.1016/j.cognition.2019.04.029
Abstract: Previous research has demonstrated that toddlers are willing to punish those who harm others. This work, however, has predominantly focused on punishment in the form of resource reduction—taking away a resource or withholding access to a resource from an antisocial other. Here, in two studies, we examined whether 4- to 7-year-old children (N = 141) engage in direct, corporal punishment against antisocial others in third-party contexts. Children were given the opportunity to press buttons so that antisocial and prosocial puppets would be hit with a hammer. In Study 1, younger children (∼4-year-olds) hit the antisocial and prosocial puppets indiscriminately, whereas older children (∼7-year-olds) tended to preferentially hit the antisocial puppet. In Study 2, we tested a larger sample of 4- to 7-year-olds, and found that none of the children engaged in corporal punishment. Collapsing across both Studies 1 and 2 also indicated a null effect—children did not engage in third-party corporal punishment. We observed these findings even though children evaluated the antisocial puppet as mean and understood that pressing the hit button hurt the puppets. These findings suggest that children lack a strong desire to corporally punish third-party social wrongdoers. Our results illustrate the importance of considering different types of punishment in assessing the development of third-party punishment, and raise questions about the development of corporal third-party punishment.
Abstract: Previous research has demonstrated that toddlers are willing to punish those who harm others. This work, however, has predominantly focused on punishment in the form of resource reduction—taking away a resource or withholding access to a resource from an antisocial other. Here, in two studies, we examined whether 4- to 7-year-old children (N = 141) engage in direct, corporal punishment against antisocial others in third-party contexts. Children were given the opportunity to press buttons so that antisocial and prosocial puppets would be hit with a hammer. In Study 1, younger children (∼4-year-olds) hit the antisocial and prosocial puppets indiscriminately, whereas older children (∼7-year-olds) tended to preferentially hit the antisocial puppet. In Study 2, we tested a larger sample of 4- to 7-year-olds, and found that none of the children engaged in corporal punishment. Collapsing across both Studies 1 and 2 also indicated a null effect—children did not engage in third-party corporal punishment. We observed these findings even though children evaluated the antisocial puppet as mean and understood that pressing the hit button hurt the puppets. These findings suggest that children lack a strong desire to corporally punish third-party social wrongdoers. Our results illustrate the importance of considering different types of punishment in assessing the development of third-party punishment, and raise questions about the development of corporal third-party punishment.
Machiavellianism was found to be linked to burnout in a component-specific manner; depersonalization was the prime mover of the Machiavellianism-burnout link; it was related to burnout in a sex-dependent fashion
An exploratory study of the link between Machiavellianism and burnout. Danijela Mirkovic, Renzo Bianchi. Personality and Individual Differences, Volume 148, 1 October 2019, Pages 27-31. https://doi.org/10.1016/j.paid.2019.05.024
Highlights
• Machiavellianism was found to be linked to burnout in a component-specific manner.
• Depersonalization was the prime mover of the Machiavellianism-burnout link.
• Emotional exhaustion was not substantially associated with Machiavellianism.
• Machiavellianism was related to burnout in a sex-dependent fashion.
• The Machiavellianism-depersonalization link appeared to be quadratic in women.
Abstract: This study investigated the link between Machiavellianism and burnout. A total of 1073 schoolteachers (83% female) completed an online survey. Machiavellianism was assessed with the MACH IV and burnout with the Maslach Burnout Inventory. General health status, job satisfaction, and life satisfaction were additionally evaluated using single-item measures. Machiavellianism correlated positively with burnout and its components (emotional exhaustion, depersonalization, and diminished personal accomplishment), and negatively with general health status, job satisfaction, and life satisfaction. The burnout-Machiavellianism association appeared to be primarily driven by the depersonalization component of burnout. In women, the relationship between Machiavellianism and depersonalization was better accounted for by a quadratic model, following a U-shaped curve. In men, a quadratic model did not outperform a linear model. Compared to low-Machiavellianism women, high-Machiavellianism women exhibited higher levels of burnout and depersonalization and lower levels of personal accomplishment, job satisfaction, and life satisfaction. High-Machiavellianism men exhibited higher levels of burnout and depersonalization than low-Machiavellianism men. Overall, no substantial association was found between Machiavellianism and emotional exhaustion―the core symptom of burnout. Our findings suggest that Machiavellianism is linked to burnout in a component-specific, sex-dependent, and partly nonlinear fashion. The practical importance of the burnout-Machiavellianism association requires clarification.
Highlights
• Machiavellianism was found to be linked to burnout in a component-specific manner.
• Depersonalization was the prime mover of the Machiavellianism-burnout link.
• Emotional exhaustion was not substantially associated with Machiavellianism.
• Machiavellianism was related to burnout in a sex-dependent fashion.
• The Machiavellianism-depersonalization link appeared to be quadratic in women.
Abstract: This study investigated the link between Machiavellianism and burnout. A total of 1073 schoolteachers (83% female) completed an online survey. Machiavellianism was assessed with the MACH IV and burnout with the Maslach Burnout Inventory. General health status, job satisfaction, and life satisfaction were additionally evaluated using single-item measures. Machiavellianism correlated positively with burnout and its components (emotional exhaustion, depersonalization, and diminished personal accomplishment), and negatively with general health status, job satisfaction, and life satisfaction. The burnout-Machiavellianism association appeared to be primarily driven by the depersonalization component of burnout. In women, the relationship between Machiavellianism and depersonalization was better accounted for by a quadratic model, following a U-shaped curve. In men, a quadratic model did not outperform a linear model. Compared to low-Machiavellianism women, high-Machiavellianism women exhibited higher levels of burnout and depersonalization and lower levels of personal accomplishment, job satisfaction, and life satisfaction. High-Machiavellianism men exhibited higher levels of burnout and depersonalization than low-Machiavellianism men. Overall, no substantial association was found between Machiavellianism and emotional exhaustion―the core symptom of burnout. Our findings suggest that Machiavellianism is linked to burnout in a component-specific, sex-dependent, and partly nonlinear fashion. The practical importance of the burnout-Machiavellianism association requires clarification.
Norms exist regarding the spillover of political considerations into nonpolitical matters: When one's copartisans discriminate against members of the other party, it can lead to decreased partisan identification and depolarization
Political Consequences of Partisan Prejudice. Richard M. Shafranek. Political Psychology, May 27 2019. https://doi.org/10.1111/pops.12596
Abstract: Political conflict sometimes spills over into unrelated areas of our lives. A growing literature documents examples of partisan considerations influencing judgments and behaviors in ostensibly nonpolitical contexts such as the workplace, academia, and dating, among others. To date, the focus has been on demonstrating these phenomena, with scant consideration of their downstream effects. When politics spills over into nonpolitical settings—that is, when political considerations influence nonpolitical judgments or behaviors—what are the consequences? I address this question with a novel theory and a nationally representative survey experiment. I find that norms exist regarding the spillover of political considerations into nonpolitical matters—and that spillover can have its own political consequences. When one's copartisans discriminate against members of the other party, it can lead to decreased partisan identification and depolarization. Partisan discrimination in nonpolitical settings can—in some sense ironically—reduce affective polarization. That said, partisans also appear to hold a double standard: They expect copartisans to give an edge to fellow copartisans.
Abstract: Political conflict sometimes spills over into unrelated areas of our lives. A growing literature documents examples of partisan considerations influencing judgments and behaviors in ostensibly nonpolitical contexts such as the workplace, academia, and dating, among others. To date, the focus has been on demonstrating these phenomena, with scant consideration of their downstream effects. When politics spills over into nonpolitical settings—that is, when political considerations influence nonpolitical judgments or behaviors—what are the consequences? I address this question with a novel theory and a nationally representative survey experiment. I find that norms exist regarding the spillover of political considerations into nonpolitical matters—and that spillover can have its own political consequences. When one's copartisans discriminate against members of the other party, it can lead to decreased partisan identification and depolarization. Partisan discrimination in nonpolitical settings can—in some sense ironically—reduce affective polarization. That said, partisans also appear to hold a double standard: They expect copartisans to give an edge to fellow copartisans.
Fecal microbiota transplantation is a highly effective therapy for recurrent Clostridioides difficile infection; donors are essential, but difficult to recruit and retain; males and blood donos are more willing to consider stool donation
In search of stool donors: a multicenter study of prior knowledge, perceptions, motivators, and deterrents among potential donors for fecal microbiota transplantation. Breanna McSweeney et al. Gut Microbes, May 23 2019. https://doi.org/10.1080/19490976.2019.1611153
ABSTRACT: Fecal microbiota transplantation (FMT) is a highly effective therapy for recurrent Clostridioides difficile infection. Stool donors are essential, but difficult to recruit and retain. We aimed to identify factors influencing willingness to donate stool. This multi-center study with a 32-item questionnaire targeted young adults and health care workers via social media and university email lists in Edmonton and Kingston, Canada; London and Nottingham, England; and Indianapolis and Boston, USA. Items included baseline demographics and FMT knowledge and perception. Investigated motivators and deterrents included economic compensation, screening process, time commitment, and stool donation logistics. Logistic regression and linear regression models estimated associations of study variables with self-assessed willingness to donate stool. 802 respondents completed our questionnaire: 387 (48.3%) age 21-30 years, 573 (71.4%) female, 323 (40%) health care workers. Country of residence, age and occupation were not associated with willingness to donate stool. Factors increasing willingness to donate were: already a blood donor (OR 1.64), male, altruism, economic benefit, knowledge of how FMT can help patients (OR 1.32), and positive attitudes towards FMT (OR 1.39). Factors decreasing willingness to donate were: stool collection unpleasant (OR 0.92), screening process invasive (OR 0.92), higher stool donation frequency, negative social perception of stool, and logistics of collection/transporting feces. We conclude that 1) blood donors and males are more willing to consider stool donation; 2) altruism, economic compensation, and positive feedback are motivators; and 3) screening process, high donation frequency, logistics of collection/transporting feces, lack of public awareness, and negative social perception are deterrents. Considering these variables could maximize donor recruitment and retention.
KEYWORDS: Fecal microbiota transplantation (FMT), Clostridioides difficile infection (CDI), recurrent Clostridioides difficile infection (RCDI), fecal transplant donors, stool donors
ABSTRACT: Fecal microbiota transplantation (FMT) is a highly effective therapy for recurrent Clostridioides difficile infection. Stool donors are essential, but difficult to recruit and retain. We aimed to identify factors influencing willingness to donate stool. This multi-center study with a 32-item questionnaire targeted young adults and health care workers via social media and university email lists in Edmonton and Kingston, Canada; London and Nottingham, England; and Indianapolis and Boston, USA. Items included baseline demographics and FMT knowledge and perception. Investigated motivators and deterrents included economic compensation, screening process, time commitment, and stool donation logistics. Logistic regression and linear regression models estimated associations of study variables with self-assessed willingness to donate stool. 802 respondents completed our questionnaire: 387 (48.3%) age 21-30 years, 573 (71.4%) female, 323 (40%) health care workers. Country of residence, age and occupation were not associated with willingness to donate stool. Factors increasing willingness to donate were: already a blood donor (OR 1.64), male, altruism, economic benefit, knowledge of how FMT can help patients (OR 1.32), and positive attitudes towards FMT (OR 1.39). Factors decreasing willingness to donate were: stool collection unpleasant (OR 0.92), screening process invasive (OR 0.92), higher stool donation frequency, negative social perception of stool, and logistics of collection/transporting feces. We conclude that 1) blood donors and males are more willing to consider stool donation; 2) altruism, economic compensation, and positive feedback are motivators; and 3) screening process, high donation frequency, logistics of collection/transporting feces, lack of public awareness, and negative social perception are deterrents. Considering these variables could maximize donor recruitment and retention.
KEYWORDS: Fecal microbiota transplantation (FMT), Clostridioides difficile infection (CDI), recurrent Clostridioides difficile infection (RCDI), fecal transplant donors, stool donors
Are narcissistic athletes mentally tough?Admiration (i.e., agentic narcissism) would be positively associated with mental toughness, whereas rivalry (i.e., antagonistic narcissism) would be negatively related
The effect of narcissistic admiration and rivalry on mental toughness. Harry Manley et al. Personality and Individual Differences, Volume 148, 1 October 2019, Pages 1-6. https://doi.org/10.1016/j.paid.2019.05.009
Abstract: Are narcissistic athletes mentally tough? Here we examined the effect of narcissistic admiration and rivalry on mental toughness. Based on their contrasting behavioural correlates and cognitive affective-motivational basis, we predicted that admiration (i.e., agentic narcissism) would be positively associated with mental toughness, whereas rivalry (i.e., antagonistic narcissism) would be negatively related to mental toughness. In a sample of elite Thai athletes (N = 297), we assessed narcissistic admiration and rivalry, self-esteem, self-reported mental toughness, and coach ratings of mental toughness for a subset of athletes. Narcissistic admiration was positively associated with self and coach-ratings of mental toughness. In contrast, narcissistic rivalry was negatively associated with self and coach-ratings of mental toughness. These effects were independent of self-esteem and stress the importance of considering both the agentic and antagonistic sides of narcissism when addressing narcissism's relationship with mental toughness.
Abstract: Are narcissistic athletes mentally tough? Here we examined the effect of narcissistic admiration and rivalry on mental toughness. Based on their contrasting behavioural correlates and cognitive affective-motivational basis, we predicted that admiration (i.e., agentic narcissism) would be positively associated with mental toughness, whereas rivalry (i.e., antagonistic narcissism) would be negatively related to mental toughness. In a sample of elite Thai athletes (N = 297), we assessed narcissistic admiration and rivalry, self-esteem, self-reported mental toughness, and coach ratings of mental toughness for a subset of athletes. Narcissistic admiration was positively associated with self and coach-ratings of mental toughness. In contrast, narcissistic rivalry was negatively associated with self and coach-ratings of mental toughness. These effects were independent of self-esteem and stress the importance of considering both the agentic and antagonistic sides of narcissism when addressing narcissism's relationship with mental toughness.
Both sexes wanted a long-term mate who is equally educated than they are; women wanted a short-term mate equally educated, unlike men; also, men's sexual/romantic desire was less sensitive to prospective mate's education
Mate preferences for educated partners: Similarities and differences in the sexes depend on mating context. Author links open overlay panel. Peter K. Jonason, Caitlin N. Antoon. Personality and Individual Differences, Volume 148, 1 October 2019, Pages 57-61. https://doi.org/10.1016/j.paid.2019.05.036
Highlights
• Both sexes wanted a long-term mate who is equally educated than they are.
• Women wanted a short-term mate who is equally educated than they are.
• Men wanted a short-term mate who is less educated than they are.
• Men's sexual/romantic desire was less sensitive to prospective mate's education.
• Interpersonal warmth had independent and similar effects on desirability.
Abstract: Evolutionary and sociocultural models of mate preferences suggest that education might be an important consideration for men and women, but this research is characterized by several limitations warranting more research. In this experiment (N = 1306), we focused on the impact of relative levels of education on the desirability of potential long-term and short-term mates, while holding physical attractiveness constant, and also examining the potential moderating influence of interpersonal warmth. Both sexes preferred mates of equal education (compared to less or more), for both relationship durations, but particularly for long-term mates. Men found less educated and interpersonally cold targets more appealing in the short-term context. Overall, men found targets more appealing than women did across both mating contexts. Our results replicate and extend research on the role of partner's education in people's mate preferences.
Highlights
• Both sexes wanted a long-term mate who is equally educated than they are.
• Women wanted a short-term mate who is equally educated than they are.
• Men wanted a short-term mate who is less educated than they are.
• Men's sexual/romantic desire was less sensitive to prospective mate's education.
• Interpersonal warmth had independent and similar effects on desirability.
Abstract: Evolutionary and sociocultural models of mate preferences suggest that education might be an important consideration for men and women, but this research is characterized by several limitations warranting more research. In this experiment (N = 1306), we focused on the impact of relative levels of education on the desirability of potential long-term and short-term mates, while holding physical attractiveness constant, and also examining the potential moderating influence of interpersonal warmth. Both sexes preferred mates of equal education (compared to less or more), for both relationship durations, but particularly for long-term mates. Men found less educated and interpersonally cold targets more appealing in the short-term context. Overall, men found targets more appealing than women did across both mating contexts. Our results replicate and extend research on the role of partner's education in people's mate preferences.
Monday, May 27, 2019
Pornography preferences, short-term mating, and infidelity: Men exhibit more interest in group sex scenarios than women, & intentions to commit infidelity are also associated with greater interest in group sex scenarios
Evolutionary approaches: Integrating pornography preferences, short-term mating, and infidelity. Catherine Salmon, Maryanne L. Fisher, Rebecca L. Burch. Personality and Individual Differences, Volume 148, 1 October 2019, Pages 45-49, https://doi.org/10.1016/j.paid.2019.05.030
Abstract: There are a number of questions concerning human sexual psychology where pornography consumption may be particularly informative, yet evolutionary psychologists have been slow to incorporate it into research designs. This study examines the relationships between pornography preferences, individual's sex, proxies for short-term mating strategies (e.g., life history strategy, sociosexuality), and infidelity. For example, we predict that men, more than women, will be interested in group sex (i.e., threesomes and gangbang) scenarios in pornography as a result of selective pressures for sperm competition. Further, specific activities and sexual situations in pornography are likely to be differentially appealing based on the sexual strategies pursued by consumers. Thus, women who have higher, versus lower, intentions of committing infidelity will be more interested in activities like group sex, given the latter involves no commitment. Results suggest that men exhibit more interest in group sex scenarios than women, and intentions to commit infidelity are also associated with greater interest in group sex scenarios. Collectively, our findings demonstrate the usefulness of incorporating consumption of pornography measures in evolutionary social psychological research.
Abstract: There are a number of questions concerning human sexual psychology where pornography consumption may be particularly informative, yet evolutionary psychologists have been slow to incorporate it into research designs. This study examines the relationships between pornography preferences, individual's sex, proxies for short-term mating strategies (e.g., life history strategy, sociosexuality), and infidelity. For example, we predict that men, more than women, will be interested in group sex (i.e., threesomes and gangbang) scenarios in pornography as a result of selective pressures for sperm competition. Further, specific activities and sexual situations in pornography are likely to be differentially appealing based on the sexual strategies pursued by consumers. Thus, women who have higher, versus lower, intentions of committing infidelity will be more interested in activities like group sex, given the latter involves no commitment. Results suggest that men exhibit more interest in group sex scenarios than women, and intentions to commit infidelity are also associated with greater interest in group sex scenarios. Collectively, our findings demonstrate the usefulness of incorporating consumption of pornography measures in evolutionary social psychological research.
Self-esteem plays an important role in the development of partisanship among young people, where those with higher self-esteem are more likely to adopt a partisan identity than those with low self-esteem
Self-Esteem and the Development of Partisan Identity. Jennifer Wolak, Carey E. Stapleton. Political Research Quarterly, May 21, 2019. https://doi.org/10.1177/1065912919851556
Abstract: Why do young people choose to identify with a political party? While existing accounts emphasize the importance of political socialization, we propose that young people’s self-perceptions also influence the adoption of partisan identities. Using survey data from the National Longitudinal Survey of Youth, we show that self-esteem plays an important role in the development of partisanship among young people, where those with higher self-esteem are more likely to adopt a partisan identity than those with low self-esteem. Using responses from the 2012–2013 American National Election Study, we further show that the effects of self-esteem are concentrated among young adults, promoting the adoption of partisan identities during one’s impressionable years. By focusing on the inheritance of partisanship from one’s parents, scholars have underestimated the importance of young people’s traits in influencing the development of partisan identities.
Keywords: partisanship, partisan identity, self-esteem, political socialization
Abstract: Why do young people choose to identify with a political party? While existing accounts emphasize the importance of political socialization, we propose that young people’s self-perceptions also influence the adoption of partisan identities. Using survey data from the National Longitudinal Survey of Youth, we show that self-esteem plays an important role in the development of partisanship among young people, where those with higher self-esteem are more likely to adopt a partisan identity than those with low self-esteem. Using responses from the 2012–2013 American National Election Study, we further show that the effects of self-esteem are concentrated among young adults, promoting the adoption of partisan identities during one’s impressionable years. By focusing on the inheritance of partisanship from one’s parents, scholars have underestimated the importance of young people’s traits in influencing the development of partisan identities.
Keywords: partisanship, partisan identity, self-esteem, political socialization
Most research has found that people exhibit altruism towards attractive people, suggesting altruistic behavior is driven by mate choice motivation
The role of prosocial behaviors in mate choice: A critical review of the literature. Manpal Singh Bhogal, Daniel Farrelly, Niall Galbraith. Current Psychology, May 27 2019. https://link.springer.com/article/10.1007/s12144-019-00308-8
Abstract: Research has focused on the role of prosocial behaviors in mate choice, across both social and evolutionary psychology. Several studies provide strong support for the role of altruism in mate choice, whereby people find prosociality attractive in potential mates. As most research focuses on the role of altruism in mate choice, most research has found that people exhibit altruism towards attractive people, suggesting altruistic behavior is driven by mate choice motivation. Although studies have supported the notion that men’s altruism towards women is driven by mate choice, the findings are inconsistent, which may be due to the methodologies adopted by researchers. To our knowledge, this review paper is the first to critically review the literature concerning prosociality and mate choice. We provide an outline of the research thus far, methodological issues, and considerations for future research.
Keywords: Mate choice Prosocial behavior Sexual selection Game theory
Check also Further support for the role of heroism in human mate choice. Manpal Singh Bhogal & James E Bartlett. https://www.bipartisanalliance.com/2019/08/both-men-and-women-found-heroic-targets.html
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Altruism as a Desirable Trait in Long-Term Romantic Partners
Research suggests that prosocial traits such as altruism and cooperation are sexually selected traits (Miller 2000, 2007; Tessman 1995; Zahavi 1995), increasing one’s chances of securing mating opportunities (Gintis et al. 2001). Farrelly et al. (2007) suggest that investing in altruistic ventures is important to both sexes, as it provides valuable information when engaging with, and evaluating a potential mate. Being willing to share may signal commitment to a relationship, as well as signalling a generous nature, which may be of more importancetowomen,aswomenvalueaman’sabilitytogain and share resources (Tessman 1995), thus strengthening the argument that altruism acts as a courtship display and is a reliable indicator of mate quality (Miller 2007). Furthermore, according to Parental Investment Theory (Trivers 1972), women invest far more into offspring thanmen do, and therefore choose partners who display good partner/parental qualities. In support, altruistic men are expected to be better partners and fathers than non-altruistic men (Miller 2000, 2007). As a result, altruism contributes to one’s mating efforts and reproductive success, which according to Roberts (2015) has been ‘overlooked’ (p. 425) in the literature. Much of the research exploring the desirability of altruistic mates began with Barclay (2010), who manipulated altruism and non-altruism in a series of vignettes. He found that men and women (particularly women) found altruistic targets to be more desirable for longterm relationships compared to short-term relationships. Furthermore, using a modified version of Buss’s Mate Preferences Questionnaire (Buss 1989), Bhogal et al. (2019) found that women placed higher importance on altruism when seeking long-term, compared to shortterm relationships, signifying the powerful role of relationship length in preferences for altruistic partners. They also found that women placed greater importance on cooperativeness in a mate compared to men, although this preference was not influenced by relationship length. Research suggests that women prefer altruistic partners (Moore et al. 2013), and this preference is particularly important when seeking long-term relationships (Farrelly 2013; Farrelly et al.2016). Moore et al. (2013) found that altruistic targets were rated as more attractive than nonaltruistic targets. Farrelly (2013) found that both men and women valued altruistic mates when seeking long-term partners compared to short-term partners, a finding which has been recently replicated by Farrelly and King (2019). Farrelly et al. (2016) argue that altruism is a sign of phenotypic quality, as opposed to singularly relaying genetic quality. In support, Farrelly (2011) found that women valued cooperative partners when seeking long-term relationships more than when seeking a short-term relationship. Farrelly (2011) found that preferences did not differ across women’s menstrual cycle, thus suggesting altruism is attractive because it signals phenotypic rather than genetic quality. Furthermore, Farrelly et al. (2016) explored the role of altruism and physical attractiveness when seeking a longterm/short-term relationship. Women rated a series of attractive and unattractive male images, accompanied by scenarios, where they were asked to rate the desirability of men in 12 scenarios including varying levels of altruism. They found that women rated those who were altruistic as more desirable than non-altruistic, seeking longterm mates only. However, non-altruists were more desirable than altruists when women were seeking a shortterm mate. Perhaps this is because altruism signals one’s positive traits and is indicative of future behavior as a parent and partner rather than genetic quality (Farrelly 2011, 2013). However, Farrelly et al. (2016) argue that a limitation of using scenarios and hypothetical situations in research on mate choice, is that these descriptions may relay other qualities, apart from altruism alone, such as heroism or strength. In support, Kelly and Dunbar (2001) found that women rate brave men higher on desirability compared to altruistic men for short and long-term mates. This could be exploredinfutureresearch, asthere isa finelinebetween acts of heroism that are altruistic, and altruism in the form of generosity in economic games. To conceptualise the different explanations for the evolution of altruism, it is important to assess why prosocial tendencies appear to be so important in mate choice. Perhaps research should explore the costs related to the altruistic acts being displayed. For example, recent evidence has unpacked prosociality by exploring its varying facets, such as heroism (Margana et al. 2019) and trustworthiness (Ehlebracht et al. 2018). Margana et al. (2019) found that women were attracted to attractive, heroic men more so than attractive, altruistic men. This preference was stronger when seeking long-term relationships compared to short-term relationships, providing further support that research must unpack the varying facets of prosocial behavior and mate choice. Thus far, research has largely focused on altruistic and cooperative behavior in mate choice settings, largely ignoring other forms of prosociality (also see Norman and Fleming 2019). In addition to unpacking prosociality, research seldom focuses on high vs low cost altruism in relation to mate choice. For example, Fitzgerald et al. (2010) argue that differences in self-reported altruism are influenced by whether the altruistic act is of small or of high cost to the altruist. Future research shouldtakethis into account, as there also appear to be differences in self-reported altruism and hypothetical scenarios (see Tables 1 and 2 for the varying resources and stakes used across the research reviewed here1). Although much of the research has found that women express an interest in dating altruistic men, recent findings suggest that in Chinese students, women advertised themselves as altruistic, and men were attracted to altruistic traits in women (Guo et al. 2017). Interestingly, they found the preference for altruistic mates was not influenced by whether they were seeking a short-term or long-term partner, thus suggesting there maybecultural differences in preferences for altruism in mate choice, which to our knowledge have not been fully explored in the literature. Perhaps future research could explore cultural influences on mate preferences for prosocial behaviors in mate choice, as most research exploring these constructs has been conducted in Western cultures. Cultural influences could be prevalent whereby it is against the norm to be non-altruistic, which is more prevalent in Eastern, collectivist cultures compared to Western, individualistic cultures (Yama 2018). One final discussion point for this section relates to mutual mate choice (Snowdon 2013). Farrelly and King (2019) argue that researchers must explore the role of mutual mate choice in the evolution of altruism rather than focusing solely on female mate choice. Although most research discussed (particularly those finding a sex difference in preferences for altruism outlined in Table 1) finds that women prefer altruistic mates to a greater extent compared to men, there is emerging literature which suggests that altruism has not only evolved via female choice, but via mutual mate choice. Mutual mate choice refers to when men and women both exercise similar choice and control over the traits they seek in a romantic partner (Farrelly and King 2019). The argument here relates to the fact that altruism signals good parental and partner qualities, which can also be important to men, particularly as men and women engage in bi-parental care (Phillips et al. 2008). For example, Farrelly and King (2019) recently found that when asking participants to state how desirable altruistic targets are as potential mates, desirability ratings are very similar. This pattern has also been found in Farrelly (2013) whereby, although women rated altruistic targets as more desirable compared to men, men still rated altruistic women as desirable partners. This signifies the point that although altruism is more important to women in mate choice, this does not necessarily mean men are also not attracted to altruistic tendencies in women. So far, we have discussed research exploring the desirability of prosocial behaviors in mate choice. We will now discuss the literature aiming to investigate whether men and women display prosocial acts, or public displays of altruism towards potential mates, using a variety of experimental designs, stimuli, and monetary resources.
Abstract: Research has focused on the role of prosocial behaviors in mate choice, across both social and evolutionary psychology. Several studies provide strong support for the role of altruism in mate choice, whereby people find prosociality attractive in potential mates. As most research focuses on the role of altruism in mate choice, most research has found that people exhibit altruism towards attractive people, suggesting altruistic behavior is driven by mate choice motivation. Although studies have supported the notion that men’s altruism towards women is driven by mate choice, the findings are inconsistent, which may be due to the methodologies adopted by researchers. To our knowledge, this review paper is the first to critically review the literature concerning prosociality and mate choice. We provide an outline of the research thus far, methodological issues, and considerations for future research.
Keywords: Mate choice Prosocial behavior Sexual selection Game theory
Check also Further support for the role of heroism in human mate choice. Manpal Singh Bhogal & James E Bartlett. https://www.bipartisanalliance.com/2019/08/both-men-and-women-found-heroic-targets.html
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Inside The role of prosocial behaviors in mate choice: A critical review of the literature. Manpal Singh Bhogal, Daniel Farrelly, Niall Galbraith...
Research suggests that prosocial traits such as altruism and cooperation are sexually selected traits (Miller 2000, 2007; Tessman 1995; Zahavi 1995), increasing one’s chances of securing mating opportunities (Gintis et al. 2001). Farrelly et al. (2007) suggest that investing in altruistic ventures is important to both sexes, as it provides valuable information when engaging with, and evaluating a potential mate. Being willing to share may signal commitment to a relationship, as well as signalling a generous nature, which may be of more importancetowomen,aswomenvalueaman’sabilitytogain and share resources (Tessman 1995), thus strengthening the argument that altruism acts as a courtship display and is a reliable indicator of mate quality (Miller 2007). Furthermore, according to Parental Investment Theory (Trivers 1972), women invest far more into offspring thanmen do, and therefore choose partners who display good partner/parental qualities. In support, altruistic men are expected to be better partners and fathers than non-altruistic men (Miller 2000, 2007). As a result, altruism contributes to one’s mating efforts and reproductive success, which according to Roberts (2015) has been ‘overlooked’ (p. 425) in the literature. Much of the research exploring the desirability of altruistic mates began with Barclay (2010), who manipulated altruism and non-altruism in a series of vignettes. He found that men and women (particularly women) found altruistic targets to be more desirable for longterm relationships compared to short-term relationships. Furthermore, using a modified version of Buss’s Mate Preferences Questionnaire (Buss 1989), Bhogal et al. (2019) found that women placed higher importance on altruism when seeking long-term, compared to shortterm relationships, signifying the powerful role of relationship length in preferences for altruistic partners. They also found that women placed greater importance on cooperativeness in a mate compared to men, although this preference was not influenced by relationship length. Research suggests that women prefer altruistic partners (Moore et al. 2013), and this preference is particularly important when seeking long-term relationships (Farrelly 2013; Farrelly et al.2016). Moore et al. (2013) found that altruistic targets were rated as more attractive than nonaltruistic targets. Farrelly (2013) found that both men and women valued altruistic mates when seeking long-term partners compared to short-term partners, a finding which has been recently replicated by Farrelly and King (2019). Farrelly et al. (2016) argue that altruism is a sign of phenotypic quality, as opposed to singularly relaying genetic quality. In support, Farrelly (2011) found that women valued cooperative partners when seeking long-term relationships more than when seeking a short-term relationship. Farrelly (2011) found that preferences did not differ across women’s menstrual cycle, thus suggesting altruism is attractive because it signals phenotypic rather than genetic quality. Furthermore, Farrelly et al. (2016) explored the role of altruism and physical attractiveness when seeking a longterm/short-term relationship. Women rated a series of attractive and unattractive male images, accompanied by scenarios, where they were asked to rate the desirability of men in 12 scenarios including varying levels of altruism. They found that women rated those who were altruistic as more desirable than non-altruistic, seeking longterm mates only. However, non-altruists were more desirable than altruists when women were seeking a shortterm mate. Perhaps this is because altruism signals one’s positive traits and is indicative of future behavior as a parent and partner rather than genetic quality (Farrelly 2011, 2013). However, Farrelly et al. (2016) argue that a limitation of using scenarios and hypothetical situations in research on mate choice, is that these descriptions may relay other qualities, apart from altruism alone, such as heroism or strength. In support, Kelly and Dunbar (2001) found that women rate brave men higher on desirability compared to altruistic men for short and long-term mates. This could be exploredinfutureresearch, asthere isa finelinebetween acts of heroism that are altruistic, and altruism in the form of generosity in economic games. To conceptualise the different explanations for the evolution of altruism, it is important to assess why prosocial tendencies appear to be so important in mate choice. Perhaps research should explore the costs related to the altruistic acts being displayed. For example, recent evidence has unpacked prosociality by exploring its varying facets, such as heroism (Margana et al. 2019) and trustworthiness (Ehlebracht et al. 2018). Margana et al. (2019) found that women were attracted to attractive, heroic men more so than attractive, altruistic men. This preference was stronger when seeking long-term relationships compared to short-term relationships, providing further support that research must unpack the varying facets of prosocial behavior and mate choice. Thus far, research has largely focused on altruistic and cooperative behavior in mate choice settings, largely ignoring other forms of prosociality (also see Norman and Fleming 2019). In addition to unpacking prosociality, research seldom focuses on high vs low cost altruism in relation to mate choice. For example, Fitzgerald et al. (2010) argue that differences in self-reported altruism are influenced by whether the altruistic act is of small or of high cost to the altruist. Future research shouldtakethis into account, as there also appear to be differences in self-reported altruism and hypothetical scenarios (see Tables 1 and 2 for the varying resources and stakes used across the research reviewed here1). Although much of the research has found that women express an interest in dating altruistic men, recent findings suggest that in Chinese students, women advertised themselves as altruistic, and men were attracted to altruistic traits in women (Guo et al. 2017). Interestingly, they found the preference for altruistic mates was not influenced by whether they were seeking a short-term or long-term partner, thus suggesting there maybecultural differences in preferences for altruism in mate choice, which to our knowledge have not been fully explored in the literature. Perhaps future research could explore cultural influences on mate preferences for prosocial behaviors in mate choice, as most research exploring these constructs has been conducted in Western cultures. Cultural influences could be prevalent whereby it is against the norm to be non-altruistic, which is more prevalent in Eastern, collectivist cultures compared to Western, individualistic cultures (Yama 2018). One final discussion point for this section relates to mutual mate choice (Snowdon 2013). Farrelly and King (2019) argue that researchers must explore the role of mutual mate choice in the evolution of altruism rather than focusing solely on female mate choice. Although most research discussed (particularly those finding a sex difference in preferences for altruism outlined in Table 1) finds that women prefer altruistic mates to a greater extent compared to men, there is emerging literature which suggests that altruism has not only evolved via female choice, but via mutual mate choice. Mutual mate choice refers to when men and women both exercise similar choice and control over the traits they seek in a romantic partner (Farrelly and King 2019). The argument here relates to the fact that altruism signals good parental and partner qualities, which can also be important to men, particularly as men and women engage in bi-parental care (Phillips et al. 2008). For example, Farrelly and King (2019) recently found that when asking participants to state how desirable altruistic targets are as potential mates, desirability ratings are very similar. This pattern has also been found in Farrelly (2013) whereby, although women rated altruistic targets as more desirable compared to men, men still rated altruistic women as desirable partners. This signifies the point that although altruism is more important to women in mate choice, this does not necessarily mean men are also not attracted to altruistic tendencies in women. So far, we have discussed research exploring the desirability of prosocial behaviors in mate choice. We will now discuss the literature aiming to investigate whether men and women display prosocial acts, or public displays of altruism towards potential mates, using a variety of experimental designs, stimuli, and monetary resources.
Feral horses: Kin and non-kin of both sexes showed unusual interest in a dying foal; however, horses appeared to avoid dead conspecifics
Feral horses’ (Equus ferus caballus) behavior toward dying and dead conspecifics. Renata S. Mendonça et al. Primates, May 27 2019. https://link.springer.com/article/10.1007/s10329-019-00728-x
Abstract: In the rapidly expanding field of comparative thanatology, reports from a wide range of taxa suggest that some aspects of a concept of death may be shared by many non-human species. In horses, there are only a few anecdotal reports on behaviors toward dead conspecifics, mostly concerning domestic individuals. Here, we describe the case of a 2-month-old, free-ranging male foal that died around 12 h after being found severely injured due to a presumed wolf attack, focusing on other individuals’ reactions to the dying foal. We also placed camera traps near horse carcasses to investigate reactions by other horses. Kin and non-kin of both sexes showed unusual interest in the dying foal. However, horses appeared to avoid dead conspecifics. Recording individual reactions to dead and dying conspecifics in naturalistic settings will enhance our knowledge about death-related behaviors in horses, allowing comparisons with other species that have been more thoroughly studied, to understand the evolutionary basis of these behaviors.
Keywords: Horse Death-related behaviors Thanatology Awareness of death Wolf attacks Injured individual
Abstract: In the rapidly expanding field of comparative thanatology, reports from a wide range of taxa suggest that some aspects of a concept of death may be shared by many non-human species. In horses, there are only a few anecdotal reports on behaviors toward dead conspecifics, mostly concerning domestic individuals. Here, we describe the case of a 2-month-old, free-ranging male foal that died around 12 h after being found severely injured due to a presumed wolf attack, focusing on other individuals’ reactions to the dying foal. We also placed camera traps near horse carcasses to investigate reactions by other horses. Kin and non-kin of both sexes showed unusual interest in the dying foal. However, horses appeared to avoid dead conspecifics. Recording individual reactions to dead and dying conspecifics in naturalistic settings will enhance our knowledge about death-related behaviors in horses, allowing comparisons with other species that have been more thoroughly studied, to understand the evolutionary basis of these behaviors.
Keywords: Horse Death-related behaviors Thanatology Awareness of death Wolf attacks Injured individual
20 years of earnings data on Finnish twins: About 40% of the variance of women’s & little more than half of men’s lifetime labour earnings are linked to genetic factors; shared environment contribution is negligible
Heritability of lifetime earnings. Ari Hyytinen & Pekka Ilmakunnas & Edvard Johansson & Otto Toivanen. The Journal of Economic Inequality, May 14 2019. https://doi.org/10.1007/s10888-019-09413-x
Abstract: Using twenty years of earnings data on Finnish twins, we find that about 40% of the variance of women’s and little more than half of men’s lifetime labour earnings are linked to genetic factors. The contribution of the shared environment is negligible. We show that the result is robust to using alternative definitions of earnings, to adjusting for the role of education, and to measurement errors in the measure of genetic relatedness.
Keywords Earnings inequality . Heritability . Twins . Genetics
Abstract: Using twenty years of earnings data on Finnish twins, we find that about 40% of the variance of women’s and little more than half of men’s lifetime labour earnings are linked to genetic factors. The contribution of the shared environment is negligible. We show that the result is robust to using alternative definitions of earnings, to adjusting for the role of education, and to measurement errors in the measure of genetic relatedness.
Keywords Earnings inequality . Heritability . Twins . Genetics
Sunday, May 26, 2019
Enlightened One-Party Rule? Ideological Differences between Chinese Communist Party Members and the Mass Public on gender equality, political pluralism, and openness to international exchange
Enlightened One-Party Rule? Ideological Differences between Chinese Communist Party Members and the Mass Public. Chengyuan Ji, Junyan Jiang. Political Research Quarterly, May 22, 2019. https://doi.org/10.1177/1065912919850342
Abstract: A popular view of nondemocratic regimes is that they draw followers mainly from those with an illiberal, authoritarian mind-set. We challenge this view by arguing that there exist a different class of autocracies that rule with a relatively enlightened base. Leveraging multiple nationally representative surveys from China over the past decade, we substantiate this claim by estimating and comparing the ideological preferences of Chinese Communist Party members and ordinary citizens. We find that party members on average hold substantially more modern and progressive views than the public on issues such as gender equality, political pluralism, and openness to international exchange. We also explore two mechanisms that may account for this party–public value gap—selection and socialization. We find that while education-based selection is the most dominant mechanism overall, socialization also plays a role, especially among older and less educated party members. Our findings caution against the simple, dichotomous characterization of political regimes and underscore an important tension between modernization and democratization in developing societies.
Keywords: ideology, mass-elite comparison, modernization, item response theory, authoritarian regime, China
Abstract: A popular view of nondemocratic regimes is that they draw followers mainly from those with an illiberal, authoritarian mind-set. We challenge this view by arguing that there exist a different class of autocracies that rule with a relatively enlightened base. Leveraging multiple nationally representative surveys from China over the past decade, we substantiate this claim by estimating and comparing the ideological preferences of Chinese Communist Party members and ordinary citizens. We find that party members on average hold substantially more modern and progressive views than the public on issues such as gender equality, political pluralism, and openness to international exchange. We also explore two mechanisms that may account for this party–public value gap—selection and socialization. We find that while education-based selection is the most dominant mechanism overall, socialization also plays a role, especially among older and less educated party members. Our findings caution against the simple, dichotomous characterization of political regimes and underscore an important tension between modernization and democratization in developing societies.
Keywords: ideology, mass-elite comparison, modernization, item response theory, authoritarian regime, China
Candidates presented to jobs as retail salespersons, servers, kitchen staff, janitors, or security guards: No discrimination at the callback stage against Indigenous Peoples, nor applicants from Indian reservations
Employment Discrimination against Indigenous Peoples in the United States: Evidence from a Field Experiment. Patrick Button, Brigham Walker. NBER Working Paper No. 25849. May 2019. https://www.nber.org/papers/w25849
Abstract: We conducted a resume correspondence experiment to measure discrimination in hiring faced by Indigenous Peoples in the United States (Native Americans, Alaska Natives, and Native Hawaiians). We sent employers realistic 13,516 resumes for common jobs (retail sales, kitchen staff, server, janitor, and security) in 11 cities and compared callback rates. We signaled Indigenous status in one of four different ways. We almost never find any differences in callback rates, regardless of the context. These findings hold after numerous robustness checks, although our checks and discussions raise multiple concerns that are relevant to audit studies generally.
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Conclusion
Our results from a large-scale field experiment of hiring discrimination where we sent 13,516 job applications of on-average identical applicants who were either Indigenous or white to jobs as retail salespersons, servers, kitchen staff, janitors, or security guards show a lack of discrimination at the callback stage, in net, against Indigenous Peoples. We also do not find bias against Native American applicants from Indian reservations.We do not find discrimination even when we estimate separately by city, occupation, or occupation and gender.
Abstract: We conducted a resume correspondence experiment to measure discrimination in hiring faced by Indigenous Peoples in the United States (Native Americans, Alaska Natives, and Native Hawaiians). We sent employers realistic 13,516 resumes for common jobs (retail sales, kitchen staff, server, janitor, and security) in 11 cities and compared callback rates. We signaled Indigenous status in one of four different ways. We almost never find any differences in callback rates, regardless of the context. These findings hold after numerous robustness checks, although our checks and discussions raise multiple concerns that are relevant to audit studies generally.
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Conclusion
Our results from a large-scale field experiment of hiring discrimination where we sent 13,516 job applications of on-average identical applicants who were either Indigenous or white to jobs as retail salespersons, servers, kitchen staff, janitors, or security guards show a lack of discrimination at the callback stage, in net, against Indigenous Peoples. We also do not find bias against Native American applicants from Indian reservations.We do not find discrimination even when we estimate separately by city, occupation, or occupation and gender.
Don’t you want me, baby? Cardiac and Electrocortical Concomitants of Romantic Interest and Rejection: Rejection is associated with big cardiac deceleration (congruent with social pain)
Don’t you want me, baby? Cardiac and Electrocortical Concomitants of Romantic Interest and Rejection. F M van der Veen, A Burdzin, S J E Langeslag. Biological Psychology, May 25 2019, https://doi.org/10.1016/j.biopsycho.2019.05.007
Highlights
• Romantic rejection is associated with cardiac deceleration.
• Romantic match is associated with enhanced P3 amplitude.
• Online dating can be used as a tool to experimentally induce romantic rejection and match.
• Effects of real romantic evaluation are comparable to effects of virtual social evaluation.
Abstract: Online dating has become a very popular way to find a romantic partner. In the present study, we examined whether romantic interest and rejection in such a setting would evoke differential electrocortical and cardiac responses. For this purpose a database was created, similar to a dating website, where the participants’ personal information and photos were placed. Heterosexual, single participants (N = 61) evaluated the profiles of opposite-sex potential romantic partners and decided whether they would like to date this person or not. Subsequently, participants passively viewed (34 analyzable volunteers participated in the EEG session; 10 male; mean age = 20) the pictures of the potential partners together with their own judgment about the “dateability” of the potential partner, and the potential partner’s judgment of the “dateability” of the participant. After viewing the pictures participants received the email addresses to contact their matches. Electrocortical and cardiac responses to these “match” or “non-match” judgments were measured. A significantly larger P3 response was found when participants received a positive evaluation as compared to negative evaluations. This is in line with an explanation in terms of reward. A significantly larger cardiac deceleration was found when participants received a negative evaluation as compared to positive evaluations, which is in line with an explanation in terms of social pain. Findings are discussed in terms of activation of different parts of the anterior cingulate cortex.
Highlights
• Romantic rejection is associated with cardiac deceleration.
• Romantic match is associated with enhanced P3 amplitude.
• Online dating can be used as a tool to experimentally induce romantic rejection and match.
• Effects of real romantic evaluation are comparable to effects of virtual social evaluation.
Abstract: Online dating has become a very popular way to find a romantic partner. In the present study, we examined whether romantic interest and rejection in such a setting would evoke differential electrocortical and cardiac responses. For this purpose a database was created, similar to a dating website, where the participants’ personal information and photos were placed. Heterosexual, single participants (N = 61) evaluated the profiles of opposite-sex potential romantic partners and decided whether they would like to date this person or not. Subsequently, participants passively viewed (34 analyzable volunteers participated in the EEG session; 10 male; mean age = 20) the pictures of the potential partners together with their own judgment about the “dateability” of the potential partner, and the potential partner’s judgment of the “dateability” of the participant. After viewing the pictures participants received the email addresses to contact their matches. Electrocortical and cardiac responses to these “match” or “non-match” judgments were measured. A significantly larger P3 response was found when participants received a positive evaluation as compared to negative evaluations. This is in line with an explanation in terms of reward. A significantly larger cardiac deceleration was found when participants received a negative evaluation as compared to positive evaluations, which is in line with an explanation in terms of social pain. Findings are discussed in terms of activation of different parts of the anterior cingulate cortex.
The Declining Labor Market Prospects of Less-Educated Men
The Declining Labor Market Prospects of Less-Educated Men. Ariel Binder, John Bound. Journal of Economic Perspectives, Volume 33, Number 2, Spring 2019, Pages 163–190. https://pubs.aeaweb.org/doi/pdfplus/10.1257/jep.33.2.163
During the last 50 years, labor market outcomes for men without a college education in the United States worsened considerably. Between 1973 and 2015, real hourly earnings for the typical 25–54 year-old man with only a high school degree declined by 18.2 percent,1 while real hourly earnings for college-educated men increased substantially. Over the same period, labor-force participation by men without a college education plummeted. In the late 1960s, nearly all 25–54 year-old men with only a high school degree participated in the labor force; by 2015, such men participated at a rate of 85.3 percent.
In this article, we examine secular change in the US labor market since the 1960s. We have two distinct but related objectives. First, we assemble an overview of developments in the wage structure, focusing on the dramatic rise in the college wage premium. Second, we examine possible explanations for the decline in labor-force participation among less-educated men. One hypothesis has been that declining labor market activity is connected with declining wages in this population. While such a connection indicates a reduction in labor demand, we point out that the canonical neoclassical framework, which emphasizes a labor demand curve shifting inward across a stable labor supply curve, does not reasonably account for this development. This is because wages have not declined consistently over the sample period, while labor-force participation has. Moreover, the uncompensated elasticity of labor supply necessary to align wage changes with participation changes, during periods when both were declining, is implausibly large.
We then examine two oft-discussed developments outside of the labor market: rising access to Social Security Disability Insurance (DI), and the growing share of less-educated men with a prison record. Rising DI program participation can account for a nontrivial share of declining labor-force participation among men aged 45–54, but appears largely irrelevant to declining participation in the 25–44 year-old group. Additionally, we document that most nonparticipating men support themselves primarily on the income of other family members, with a distinct minority depending primarily on their own disability benefits. The literature has not progressed far enough to admit a reasonable quantification of the impact of rising exposure to prison on the labor-force participation rate, but recent estimates suggest that sizable effects are possible. We flag this as an important area for further research.
The existing literature, in our view, has not satisfactorily explained the decline in less-educated male labor-force participation. This leads us to develop a new explana-tion. As others have documented, family structure in the United States has changed dramatically since the 1960s, featuring a tremendous decline in the share of less-educated men forming and maintaining stable marriages. We additionally show an increase in the share of less-educated men living with their parents or other relatives. Providing for a new family plausibly provides a man with incentives to engage in labor market activity: conversely, a reduction in the prospects of forming and maintaining a stable family removes an important labor supply incentive. At the same time, the possibility of drawing income support from existing relatives creates a feasible labor-force exit. We suspect that changing family structure shifts male labor supply incentives inde-pendently of labor market conditions, and that, in addition, changing family structure may moderate the effect of a male labor demand shock on labor-force participation. Because male earning potential is an important determinant of new marriage formation, a persistent labor demand shock that reduces male earning potential could impact male labor-force participation through its effects on the marriage market.
Much prior research has addressed US labor market trends over the last half century, including several recent reviews of male employment (Moffitt 2012; Council of Economic Advisors 2016; Abraham and Kearney 2018). Our aim is not to review the literature, but rather to point out where we think consensus has developed and where we think important questions remain unanswered. In the synthesis that emerges, the phenomenon of declining prime-age male labor-force participation is not coherently explained by a series of causal factors acting separately. A more reasonable interpreta-tion, we argue, involves complex feedbacks between labor demand, family structure, and other factors that have disproportionately affected less-educated men.
[...]
Conclusion
During the last 50 years, the earnings of prime-age men in the United States have stagnated and dispersed across the education distribution. At the same time, the labor-force participation rates of men without a college education have steadily declined. While wage and participation trends are often linked for this population, we have argued that this connection cannot solely be the result of an inward labor demand shift across a stable and elastic labor supply curve. The uncompensated labor supply elasticities implied by the twin declines of wages and participation during the 1970s, 1980s, and 2000s appear too large to be plausible. Moreover, labor-force participation continued to decrease in the 1990s while wages were rising. While the increasing availability of disability benefits and the increase in the fraction of the population with prior incarceration exposure may help explain some of the participation decline, we doubt either factor can explain the bulk of the decline.
We have argued that more plausible explanations for the observed patterns involve feedbacks from male labor demand shocks, which often involve substantial job displacement, to worker adjustment frictions and to family structure. Marriage rates, and corresponding male labor supply incentives, have also fallen for reasons other than changing labor demand. Moreover, we have noted interactions between labor demand and disability benefit take-up, and between mass incarceration and family structure. These factors have all converged to reduce the feasibility and desirability of stable employment, leading affected men—who may not often be eligible for disability or other benefits—to participate sporadically in the labor market and depend primarily on family members for income support.
During the last 50 years, labor market outcomes for men without a college education in the United States worsened considerably. Between 1973 and 2015, real hourly earnings for the typical 25–54 year-old man with only a high school degree declined by 18.2 percent,1 while real hourly earnings for college-educated men increased substantially. Over the same period, labor-force participation by men without a college education plummeted. In the late 1960s, nearly all 25–54 year-old men with only a high school degree participated in the labor force; by 2015, such men participated at a rate of 85.3 percent.
In this article, we examine secular change in the US labor market since the 1960s. We have two distinct but related objectives. First, we assemble an overview of developments in the wage structure, focusing on the dramatic rise in the college wage premium. Second, we examine possible explanations for the decline in labor-force participation among less-educated men. One hypothesis has been that declining labor market activity is connected with declining wages in this population. While such a connection indicates a reduction in labor demand, we point out that the canonical neoclassical framework, which emphasizes a labor demand curve shifting inward across a stable labor supply curve, does not reasonably account for this development. This is because wages have not declined consistently over the sample period, while labor-force participation has. Moreover, the uncompensated elasticity of labor supply necessary to align wage changes with participation changes, during periods when both were declining, is implausibly large.
We then examine two oft-discussed developments outside of the labor market: rising access to Social Security Disability Insurance (DI), and the growing share of less-educated men with a prison record. Rising DI program participation can account for a nontrivial share of declining labor-force participation among men aged 45–54, but appears largely irrelevant to declining participation in the 25–44 year-old group. Additionally, we document that most nonparticipating men support themselves primarily on the income of other family members, with a distinct minority depending primarily on their own disability benefits. The literature has not progressed far enough to admit a reasonable quantification of the impact of rising exposure to prison on the labor-force participation rate, but recent estimates suggest that sizable effects are possible. We flag this as an important area for further research.
The existing literature, in our view, has not satisfactorily explained the decline in less-educated male labor-force participation. This leads us to develop a new explana-tion. As others have documented, family structure in the United States has changed dramatically since the 1960s, featuring a tremendous decline in the share of less-educated men forming and maintaining stable marriages. We additionally show an increase in the share of less-educated men living with their parents or other relatives. Providing for a new family plausibly provides a man with incentives to engage in labor market activity: conversely, a reduction in the prospects of forming and maintaining a stable family removes an important labor supply incentive. At the same time, the possibility of drawing income support from existing relatives creates a feasible labor-force exit. We suspect that changing family structure shifts male labor supply incentives inde-pendently of labor market conditions, and that, in addition, changing family structure may moderate the effect of a male labor demand shock on labor-force participation. Because male earning potential is an important determinant of new marriage formation, a persistent labor demand shock that reduces male earning potential could impact male labor-force participation through its effects on the marriage market.
Much prior research has addressed US labor market trends over the last half century, including several recent reviews of male employment (Moffitt 2012; Council of Economic Advisors 2016; Abraham and Kearney 2018). Our aim is not to review the literature, but rather to point out where we think consensus has developed and where we think important questions remain unanswered. In the synthesis that emerges, the phenomenon of declining prime-age male labor-force participation is not coherently explained by a series of causal factors acting separately. A more reasonable interpreta-tion, we argue, involves complex feedbacks between labor demand, family structure, and other factors that have disproportionately affected less-educated men.
[...]
Conclusion
During the last 50 years, the earnings of prime-age men in the United States have stagnated and dispersed across the education distribution. At the same time, the labor-force participation rates of men without a college education have steadily declined. While wage and participation trends are often linked for this population, we have argued that this connection cannot solely be the result of an inward labor demand shift across a stable and elastic labor supply curve. The uncompensated labor supply elasticities implied by the twin declines of wages and participation during the 1970s, 1980s, and 2000s appear too large to be plausible. Moreover, labor-force participation continued to decrease in the 1990s while wages were rising. While the increasing availability of disability benefits and the increase in the fraction of the population with prior incarceration exposure may help explain some of the participation decline, we doubt either factor can explain the bulk of the decline.
We have argued that more plausible explanations for the observed patterns involve feedbacks from male labor demand shocks, which often involve substantial job displacement, to worker adjustment frictions and to family structure. Marriage rates, and corresponding male labor supply incentives, have also fallen for reasons other than changing labor demand. Moreover, we have noted interactions between labor demand and disability benefit take-up, and between mass incarceration and family structure. These factors have all converged to reduce the feasibility and desirability of stable employment, leading affected men—who may not often be eligible for disability or other benefits—to participate sporadically in the labor market and depend primarily on family members for income support.
We attribute more free will to agents who behave immorally compared to a neutral control; also, when expectations for norm adherence are violated, we infer that an agent expressed their free will to do so
Monroe, Andrew E., and Dominic Ysidron. 2019. “Do Moral Judgements Motivate Free Will Belief?.” PsyArXiv. May 25. doi:10.31234/osf.io/8wu4g
Abstract: Free will is often appraised as a necessary input to for holding others morally or legally responsible for misdeeds. Recently, however, Clark and colleagues (2014), argued for the opposite causal relationship. They assert that moral judgments and the desire to punish motivate people’s belief in free will. In three experiments—two exact replications (Studies 1 & 2b) and one close replication (Study 2a) we seek to replicate these findings. Additionally, in a novel experiment (Study 3) we test a theoretical challenge derived from attribution theory, which suggests that immoral behaviors do not uniquely influence free will judgments. Instead, our nonviolation model argues that norm deviations, of any kind—good, bad, or strange—cause people to attribute more free will to agents, and attributions of free will are explained via desire inferences. Across replication experiments we found no evidence for the original claim that witnessing immoral behavior causes people to increase their belief in free will, though we did replicate the finding that people attribute more free will to agents who behave immorally compared to a neutral control (Studies 2a & 3). Finally, our novel experiment demonstrated broad support for our norm-violation account, suggesting that people’s willingness to attribute free will to others is malleable, but not because people are motivated to blame. Instead, this experiment shows that attributions of free will are best explained by people’s expectations for norm adherence, and when these expectations are violated people infer that an agent expressed their free will to do so.
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Need for Theoretical Reinterpretation
Study 3 presents a theoretical challenge to the motivated free will belief viewpoint. Clark et al. (2014) predicate their conclusions on the claim that observing immoral behaviors activates a desire to punish the wrongdoers, and thereby causes people to inflate their belief in free will as a means to justify their desire to punish. This critical role of a desire to punish requires that the effect on free will beliefs be unique to people’s response to immoral behaviors—other norm violations, such as strange or morally good behaviors, would not engender such a desire to punish. However, in three experiments (Studies 2a, 2b, 3) we found that the desire to punish failed to mediate the effect of immoral behavior on people’s general belief in free will. Most critically, Study 3 revealed that norm violation more generally, not immorality specifically, explained variations in people’s free will judgments. Agents who committed an immoral act, a praiseworthy act, or simply strange act were judged as having more free will than agent who performed a morally neutral act. Importantly, whereas all three norm-violating behaviors (blameworthy, praiseworthy, and strange behavior) significantly differed from the control behavior, blameworthy behaviors did not differ from the praiseworthy or the strange behavior.
Together these findings argue for a non-moral explanation for free will judgments with norm-violation as the key driver. This account explains people’s tendency to attribute more free will to behaving badly agents because people generally expect others to follow moral norms, and when they don’t, people believe that there must have been a strong desire to perform the behavior. In addition, a norm-violation account is able to explain why people attribute more free will to agents behaving in odd or morally positive ways. Any deviation from what is expected causes people to attribute more desire and choice (i.e., free will) to that agent. Thus our findings suggest that people’s willingness to ascribe free will to others is indeed malleable, but considerations of free will are being driven by basic social cognitive representations of norms, expectations, and desire. Moreover, these data indicate that when people endorse free will for themselves or for others, they are not making claims about broad metaphysical freedom. Instead, if desires and norm-constraints are what affect ascriptions of free will, this suggests that what it means to have (or believe) in free will is to be rational (i.e., making choices informed by desires and preferences) and able to overcome constraints.
Abstract: Free will is often appraised as a necessary input to for holding others morally or legally responsible for misdeeds. Recently, however, Clark and colleagues (2014), argued for the opposite causal relationship. They assert that moral judgments and the desire to punish motivate people’s belief in free will. In three experiments—two exact replications (Studies 1 & 2b) and one close replication (Study 2a) we seek to replicate these findings. Additionally, in a novel experiment (Study 3) we test a theoretical challenge derived from attribution theory, which suggests that immoral behaviors do not uniquely influence free will judgments. Instead, our nonviolation model argues that norm deviations, of any kind—good, bad, or strange—cause people to attribute more free will to agents, and attributions of free will are explained via desire inferences. Across replication experiments we found no evidence for the original claim that witnessing immoral behavior causes people to increase their belief in free will, though we did replicate the finding that people attribute more free will to agents who behave immorally compared to a neutral control (Studies 2a & 3). Finally, our novel experiment demonstrated broad support for our norm-violation account, suggesting that people’s willingness to attribute free will to others is malleable, but not because people are motivated to blame. Instead, this experiment shows that attributions of free will are best explained by people’s expectations for norm adherence, and when these expectations are violated people infer that an agent expressed their free will to do so.
---
Need for Theoretical Reinterpretation
Study 3 presents a theoretical challenge to the motivated free will belief viewpoint. Clark et al. (2014) predicate their conclusions on the claim that observing immoral behaviors activates a desire to punish the wrongdoers, and thereby causes people to inflate their belief in free will as a means to justify their desire to punish. This critical role of a desire to punish requires that the effect on free will beliefs be unique to people’s response to immoral behaviors—other norm violations, such as strange or morally good behaviors, would not engender such a desire to punish. However, in three experiments (Studies 2a, 2b, 3) we found that the desire to punish failed to mediate the effect of immoral behavior on people’s general belief in free will. Most critically, Study 3 revealed that norm violation more generally, not immorality specifically, explained variations in people’s free will judgments. Agents who committed an immoral act, a praiseworthy act, or simply strange act were judged as having more free will than agent who performed a morally neutral act. Importantly, whereas all three norm-violating behaviors (blameworthy, praiseworthy, and strange behavior) significantly differed from the control behavior, blameworthy behaviors did not differ from the praiseworthy or the strange behavior.
Together these findings argue for a non-moral explanation for free will judgments with norm-violation as the key driver. This account explains people’s tendency to attribute more free will to behaving badly agents because people generally expect others to follow moral norms, and when they don’t, people believe that there must have been a strong desire to perform the behavior. In addition, a norm-violation account is able to explain why people attribute more free will to agents behaving in odd or morally positive ways. Any deviation from what is expected causes people to attribute more desire and choice (i.e., free will) to that agent. Thus our findings suggest that people’s willingness to ascribe free will to others is indeed malleable, but considerations of free will are being driven by basic social cognitive representations of norms, expectations, and desire. Moreover, these data indicate that when people endorse free will for themselves or for others, they are not making claims about broad metaphysical freedom. Instead, if desires and norm-constraints are what affect ascriptions of free will, this suggests that what it means to have (or believe) in free will is to be rational (i.e., making choices informed by desires and preferences) and able to overcome constraints.
Saturday, May 25, 2019
Preferences for beards when judging fathering potential were strongest among mothers; they prefered beards when judging fathering potential but not attractiveness, which may reflect selection for direct benefits
Mothers are sensitive to men's beards as a potential cue of paternal investment. Barnaby J. W. Dixson, Siobhan Kennedy-Costantini, Anthony J. Lee, Nicole L. Nelson. Hormones and Behavior, Volume 113, July 2019, Pages 55-66. https://doi.org/10.1016/j.yhbeh.2019.04.005
Highlights
• The first study to test if motherhood is associated with preferences for men's beards.
• Preferences for beards when judging fathering potential were strongest among mothers.
• Parous women prefered beards when judging fathering potential but not attractiveness.
• Women's preferences for men's beards may reflect selection for direct benefits.
Abstract: Mating strategy theories assert that women's preferences for androgen dependent traits in men are stronger when the costs of reduced paternal investment are lowest. Past research has shown that preferences for facial masculinity are stronger among nulliparous and non-pregnant women than pregnant or parous women. In two studies, we examine patterns in women's preferences for men's facial hair – likely the most visually conspicuous and sexually dimorphic of men's secondary sexual traits – when evaluating men's masculinity, dominance, age, fathering, and attractiveness. Two studies were conducted among heterosexual pregnant women, mothers, non-contractive and contraceptive users. Study 1 used a between-subjects sample (N = 2103) and found that mothers had significantly higher preferences for beards when judging fathering than all other women. Pregnant women and mothers also judged beards as more masculine and older, but less attractive, than non-contractive and contraceptive users. Parous women judged beards higher for age, masculinity and fathering, but lower for attractiveness, than nulliparous women. Irrespective of reproductive status, beards were judged as looking more dominant than clean-shaven faces. Study 2 used a within-subjects design (N = 53) among women surveyed during pregnancy and three months post-partum. Judgments of parenting skills were higher for bearded stimuli during pregnancy among women having their first baby, whereas among parous women parenting skills judgments for bearded stimuli were higher post-partum. Our results suggest that mothers are sensitive to beardedness as a masculine secondary sexual characteristic that may denote parental investment, providing evidence that women's mate preferences could reflect sexual selection for direct benefits.
Check also Mating Strategies and the Masculinity Paradox: How Relationship Context, Relationship Status, and Sociosexuality Shape Women’s Preferences for Facial Masculinity and Beardedness. Rebecca E. Stower et al. Archives of Sexual Behavior, Apr 23 2019. https://www.bipartisanalliance.com/2019/04/mating-strategies-and-masculinity.html
Highlights
• The first study to test if motherhood is associated with preferences for men's beards.
• Preferences for beards when judging fathering potential were strongest among mothers.
• Parous women prefered beards when judging fathering potential but not attractiveness.
• Women's preferences for men's beards may reflect selection for direct benefits.
Abstract: Mating strategy theories assert that women's preferences for androgen dependent traits in men are stronger when the costs of reduced paternal investment are lowest. Past research has shown that preferences for facial masculinity are stronger among nulliparous and non-pregnant women than pregnant or parous women. In two studies, we examine patterns in women's preferences for men's facial hair – likely the most visually conspicuous and sexually dimorphic of men's secondary sexual traits – when evaluating men's masculinity, dominance, age, fathering, and attractiveness. Two studies were conducted among heterosexual pregnant women, mothers, non-contractive and contraceptive users. Study 1 used a between-subjects sample (N = 2103) and found that mothers had significantly higher preferences for beards when judging fathering than all other women. Pregnant women and mothers also judged beards as more masculine and older, but less attractive, than non-contractive and contraceptive users. Parous women judged beards higher for age, masculinity and fathering, but lower for attractiveness, than nulliparous women. Irrespective of reproductive status, beards were judged as looking more dominant than clean-shaven faces. Study 2 used a within-subjects design (N = 53) among women surveyed during pregnancy and three months post-partum. Judgments of parenting skills were higher for bearded stimuli during pregnancy among women having their first baby, whereas among parous women parenting skills judgments for bearded stimuli were higher post-partum. Our results suggest that mothers are sensitive to beardedness as a masculine secondary sexual characteristic that may denote parental investment, providing evidence that women's mate preferences could reflect sexual selection for direct benefits.
Check also Mating Strategies and the Masculinity Paradox: How Relationship Context, Relationship Status, and Sociosexuality Shape Women’s Preferences for Facial Masculinity and Beardedness. Rebecca E. Stower et al. Archives of Sexual Behavior, Apr 23 2019. https://www.bipartisanalliance.com/2019/04/mating-strategies-and-masculinity.html
Rewritable fidelity: Male voles readily form new pair-bonds; repeated pair-bond dissolution didn't negatively impact affect nor behavior toward pups; older males spent less time with strange females
Rewritable fidelity: How repeated pairings and age influence subsequent pair-bond formation in male prairie voles. William M. Kenkel et al. Hormones and Behavior, Volume 113, July 2019, Pages 47-54. https://doi.org/10.1016/j.yhbeh.2019.04.015
Highlights
• Male prairie voles readily form new pair-bonds at least ten times.
• Repeated pair-bond dissolution did not negatively impact affect.
• Male voles did not show experience-related changes in paternal behavior.
• Older males associated less with strange females.
Abstract: The prairie vole has proven a valuable animal model for the neurobiological study of social monogamy and pair bonding. Previous research has focused almost exclusively on virgin prairie voles forming pair-bonds for the first time – a paradigm with limited relevance to human social behavior. In the present study, we used stud males to assess the impact of repeated pair-bond formation and dissolution on the behaviors and neurobiology relevant to subsequent pair-bond formation. Stud males were tested for behavioral and neurobiological effects of repeated pair-bonding after the 1st, 5th, and 10th pairing. Aged breeder males that experienced minimal pair-bond dissolution were included to control for the effects of aging. Results showed that male prairie voles readily form new pair-bonds after repeated pair-bond dissolution. In terms of social monogamy, old age was associated with males spending less time in close social contact with unfamiliar females. There were no effects of age nor number of lifetime pairings on depressive-like behavior or paternal behavior toward pups. Within the brain, the patterns of oxytocin (OTR) and vasopressin type 1a (V1aR) receptors were largely unaffected, with the following exceptions: 1) males with only a single pairing had higher OTR densities in the paraventricular thalamus and bed nucleus of the stria terminalis; 2) there was an age-related increase in the density of OTR in the caudate putamen and an age-related decline in the density of V1aR in the cortical amygdala. The present findings have translational relevance to human social behavior in the context of aging and social experience.
Highlights
• Male prairie voles readily form new pair-bonds at least ten times.
• Repeated pair-bond dissolution did not negatively impact affect.
• Male voles did not show experience-related changes in paternal behavior.
• Older males associated less with strange females.
Abstract: The prairie vole has proven a valuable animal model for the neurobiological study of social monogamy and pair bonding. Previous research has focused almost exclusively on virgin prairie voles forming pair-bonds for the first time – a paradigm with limited relevance to human social behavior. In the present study, we used stud males to assess the impact of repeated pair-bond formation and dissolution on the behaviors and neurobiology relevant to subsequent pair-bond formation. Stud males were tested for behavioral and neurobiological effects of repeated pair-bonding after the 1st, 5th, and 10th pairing. Aged breeder males that experienced minimal pair-bond dissolution were included to control for the effects of aging. Results showed that male prairie voles readily form new pair-bonds after repeated pair-bond dissolution. In terms of social monogamy, old age was associated with males spending less time in close social contact with unfamiliar females. There were no effects of age nor number of lifetime pairings on depressive-like behavior or paternal behavior toward pups. Within the brain, the patterns of oxytocin (OTR) and vasopressin type 1a (V1aR) receptors were largely unaffected, with the following exceptions: 1) males with only a single pairing had higher OTR densities in the paraventricular thalamus and bed nucleus of the stria terminalis; 2) there was an age-related increase in the density of OTR in the caudate putamen and an age-related decline in the density of V1aR in the cortical amygdala. The present findings have translational relevance to human social behavior in the context of aging and social experience.
Preregistration... Comparing Dream to Reality: We observed deviations from the plan in all studies, and, more importantly, in all but one study, at least one of these deviations was not fully disclosed
Claesen, Aline, Sara L. B. T. Gomes, Francis Tuerlinckx, and wolf vanpaemel. 2019. “Preregistration: Comparing Dream to Reality.” PsyArXiv. May 9. doi:10.31234/osf.io/d8wex
Abstract: Doing research inevitably involves making numerous decisions that can influence research outcomes in such a way that it leads to overconfidence in statistical conclusions. One proposed method to increase the interpretability of a research finding is preregistration, which involves documenting analytic choices on a public, third-party repository prior to any influence by data. To investigate whether, in psychology, preregistration lives up to that potential, we focused on all articles published in Psychological Science with a preregistered badge between February 2015 and November 2017, and assessed the adherence to their corresponding preregistration plans. We observed deviations from the plan in all studies, and, more importantly, in all but one study, at least one of these deviations was not fully disclosed. We discuss examples and possible explanations, and highlight good practices for preregistering research.
Abstract: Doing research inevitably involves making numerous decisions that can influence research outcomes in such a way that it leads to overconfidence in statistical conclusions. One proposed method to increase the interpretability of a research finding is preregistration, which involves documenting analytic choices on a public, third-party repository prior to any influence by data. To investigate whether, in psychology, preregistration lives up to that potential, we focused on all articles published in Psychological Science with a preregistered badge between February 2015 and November 2017, and assessed the adherence to their corresponding preregistration plans. We observed deviations from the plan in all studies, and, more importantly, in all but one study, at least one of these deviations was not fully disclosed. We discuss examples and possible explanations, and highlight good practices for preregistering research.
Rolf Degen summarizing: Men respond to all kinds of womanly stimuli with a rise in testosterone, which may not even subside with age
Human reproductive behavior, life history, and the Challenge Hypothesis: A 30-year review, retrospective and future directions. Peter B. Gray et al. Hormones and Behavior, May 25 2019. https://doi.org/10.1016/j.yhbeh.2019.04.017
Highlights
• Reviews research on human life histories and the Challenge Hypothesis.
• We conducted a citation analysis of 400 Google Scholar citations in the human literature, identifying key patterns.
• We review findings within several domains: competition, courtship and sexual behavior, and partnerships and paternal care.
• We discuss extensions of the Challenge Hypothesis to juvenile and senescent life stages.
• We discuss how research on testosterone administration provides causal insight into effects of testosterone in humans.
Abstract: The Challenge Hypothesis (Wingfield et al., 1990) originally focused on adult male avian testosterone elevated in response to same-sex competition in reproductive contexts. The purpose of the present paper is to demonstrate how the Challenge Hypothesis has shaped ideas about human life histories. We conduct a citation analysis, drawing upon 400 Google Scholar citations in the human literature to identify patterns in this body of scholarship. We cover key factors, such as context and personality traits, that help explain variable testosterone responses such as winning/losing to adult competitive behavior. Findings from studies on courtship and sexual behavior indicate some variation in testosterone responses depending on factors such as motivation. A large body of research indicates that male testosterone levels are often lower in contexts of long-term committed partnerships and nurturant fathering and aligned with variation in male mating and parenting effort. As the Challenge Hypothesis is extended across the life course, DHEA and androstenedione (rather than testosterone) appear more responsive to juvenile male competitive behavior, and during reproductive senescence, baseline male testosterone levels decrease just as male life history allocations show decreased mating effort. We discuss how research on testosterone administration, particularly in older men, provides causal insight into effects of testosterone in humans, and how this “natural experiment” can be viewed in light of the Challenge Hypothesis. We synthesize central concepts and findings, such as an expanded array of costs of testosterone that inform life history tradeoffs between maintenance and reproductive effort, and we conclude with directions for future research.
Highlights
• Reviews research on human life histories and the Challenge Hypothesis.
• We conducted a citation analysis of 400 Google Scholar citations in the human literature, identifying key patterns.
• We review findings within several domains: competition, courtship and sexual behavior, and partnerships and paternal care.
• We discuss extensions of the Challenge Hypothesis to juvenile and senescent life stages.
• We discuss how research on testosterone administration provides causal insight into effects of testosterone in humans.
Abstract: The Challenge Hypothesis (Wingfield et al., 1990) originally focused on adult male avian testosterone elevated in response to same-sex competition in reproductive contexts. The purpose of the present paper is to demonstrate how the Challenge Hypothesis has shaped ideas about human life histories. We conduct a citation analysis, drawing upon 400 Google Scholar citations in the human literature to identify patterns in this body of scholarship. We cover key factors, such as context and personality traits, that help explain variable testosterone responses such as winning/losing to adult competitive behavior. Findings from studies on courtship and sexual behavior indicate some variation in testosterone responses depending on factors such as motivation. A large body of research indicates that male testosterone levels are often lower in contexts of long-term committed partnerships and nurturant fathering and aligned with variation in male mating and parenting effort. As the Challenge Hypothesis is extended across the life course, DHEA and androstenedione (rather than testosterone) appear more responsive to juvenile male competitive behavior, and during reproductive senescence, baseline male testosterone levels decrease just as male life history allocations show decreased mating effort. We discuss how research on testosterone administration, particularly in older men, provides causal insight into effects of testosterone in humans, and how this “natural experiment” can be viewed in light of the Challenge Hypothesis. We synthesize central concepts and findings, such as an expanded array of costs of testosterone that inform life history tradeoffs between maintenance and reproductive effort, and we conclude with directions for future research.
People are unable to self-project into deteriorated versions of themselves; this is not based on similarity in mind or body, as say philosophical & psychological theories
De Freitas, Julian, and George Alvarez. 2019. “Struggling to Imagine Ourselves.” PsyArXiv. May 11. doi:10.31234/osf.io/c4wqg
Abstract: The uniquely human ability to imagine alternate versions of ourselves draws on specialized neural networks and plays a critical role in planning and decision making. But is there any constraint on our ability to self-project into a remembered or anticipated version of ourselves? And if so, might this constraint also affect our ability to relate to others? Here we show that people are unable to self-project into deteriorated versions of themselves. This psychological roadblock is not based on similarity in mind or body, as current philosophical and psychological theories predict, but on an overlapping cognitive template— in order to feel that someone is you, you have to attribute to them a shared essence. Moreover, individual differences in how people identify with different versions of themselves predict their ethical opinions, including endorsement of abortion or assisted death, suggesting that the capacity for self-projection also constrains people’s moral judgments about others.
Abstract: The uniquely human ability to imagine alternate versions of ourselves draws on specialized neural networks and plays a critical role in planning and decision making. But is there any constraint on our ability to self-project into a remembered or anticipated version of ourselves? And if so, might this constraint also affect our ability to relate to others? Here we show that people are unable to self-project into deteriorated versions of themselves. This psychological roadblock is not based on similarity in mind or body, as current philosophical and psychological theories predict, but on an overlapping cognitive template— in order to feel that someone is you, you have to attribute to them a shared essence. Moreover, individual differences in how people identify with different versions of themselves predict their ethical opinions, including endorsement of abortion or assisted death, suggesting that the capacity for self-projection also constrains people’s moral judgments about others.
An association between women's physical attractiveness and the length of their reproductive career in a nationally representative sample
An association between women's physical attractiveness and the length of their reproductive career in a prospectively longitudinal nationally representative sample. Satoshi Kanazawa. American Journal of Human Biology, May 23 2019. https://doi.org/10.1002/ajhb.23256
Abstract
Objectives: Why is physical attractiveness more important for women's mate value in long‐term mating than in short‐term mating? This article replicates Bovet et al.'s (Journal of Evolutionary Biology. 2018; 31:229–238) recent finding that physically attractive women have a later expected age of menopause.
Methods: I analyzed the prospectively longitudinal, nationally representative sample of women in the National Child Development Study, applying t‐test and multiple regression analyses.
Results: Analyses showed that girls rated physically attractive at age 7 underwent menarche 3.12 months earlier than other girls, and they had 32% smaller odds of having undergone menopause before age 51. The results suggest that more physically attractive women have longer reproductive careers, explaining why physical attractiveness may be a more important determinant of women's mate value in long‐term mating than in short‐term mating.
Conclusions: Women's physical attractiveness predicts the timing of menarche and menopause, thereby the length of their reproductive careers.
Abstract
Objectives: Why is physical attractiveness more important for women's mate value in long‐term mating than in short‐term mating? This article replicates Bovet et al.'s (Journal of Evolutionary Biology. 2018; 31:229–238) recent finding that physically attractive women have a later expected age of menopause.
Methods: I analyzed the prospectively longitudinal, nationally representative sample of women in the National Child Development Study, applying t‐test and multiple regression analyses.
Results: Analyses showed that girls rated physically attractive at age 7 underwent menarche 3.12 months earlier than other girls, and they had 32% smaller odds of having undergone menopause before age 51. The results suggest that more physically attractive women have longer reproductive careers, explaining why physical attractiveness may be a more important determinant of women's mate value in long‐term mating than in short‐term mating.
Conclusions: Women's physical attractiveness predicts the timing of menarche and menopause, thereby the length of their reproductive careers.
Friday, May 24, 2019
A Different Take on the Big Bang Theory: Examining the Influence of Asperger Traits on the Perception and Attributional Confidence of a Fictional TV Character Portraying Characteristics of Asperger Syndrome
A Different Take on the Big Bang Theory: Examining the Influence of Asperger Traits on the Perception and Attributional Confidence of a Fictional TV Character Portraying Characteristics of Asperger Syndrome. Brenda Rourke & Rory McGloin. Atlantic Journal of Communication, Volume 27, 2019 - Issue 2, Pages 127-138. Feb 26 2019. https://doi.org/10.1080/15456870.2019.1574797
ABSTRACT: Research shows that media figures can influence the construction of one’s personal and social identity. However, there are few studies that examine representations of stigmatized groups with developmental disorders, such as those with autism spectrum disorders. This research examines the effect of a viewer’s scores on the autism quotient (AQ) and their relationship with homophily and attributional confidence towards Sheldon on The Big Bang Theory, who is suspected of having Asperger’s syndrome (AS). Guided by uncertainty reduction theory the results indicated a positive relationship between the dimensions of the AQ and homophily with Sheldon, and a positive relationship between higher scores on the AQ and attributional confidence towards Sheldon. The implications of identification with fictional television characters for individuals with AS, and the application of the AQ in future research are discussed relative to the current findings.
KEYWORDS: Asperger’s syndrome, uncertainty reduction, homophily, empathy, attributional confidence
ABSTRACT: Research shows that media figures can influence the construction of one’s personal and social identity. However, there are few studies that examine representations of stigmatized groups with developmental disorders, such as those with autism spectrum disorders. This research examines the effect of a viewer’s scores on the autism quotient (AQ) and their relationship with homophily and attributional confidence towards Sheldon on The Big Bang Theory, who is suspected of having Asperger’s syndrome (AS). Guided by uncertainty reduction theory the results indicated a positive relationship between the dimensions of the AQ and homophily with Sheldon, and a positive relationship between higher scores on the AQ and attributional confidence towards Sheldon. The implications of identification with fictional television characters for individuals with AS, and the application of the AQ in future research are discussed relative to the current findings.
KEYWORDS: Asperger’s syndrome, uncertainty reduction, homophily, empathy, attributional confidence
Reasons people enjoy sexist humor and accept it as inoffensive
Reasons people enjoy sexist humor and accept it as inoffensive. Scott Parrott & Toby Hopp. Atlantic Journal of Communication, May 23 2019. https://doi.org/10.1080/15456870.2019.1616737
ABSTRACT: An experiment examined factors that inform participants’ enjoyment of anti-female humor and their acceptance of the humor as inoffensive. Participants (n = 101) were exposed to sexist humor that was communicated by either (a) a male disparager, (b) a female disparager, or (c) a disparager whose sex was not identified. A path model examined the contribution of four predictors – the experimental manipulation and audience members’ hostile sexism, sex, and perceptions of social acceptance of the humor – in their reported personal acceptance and enjoyment of the insulting humor. The results suggested that men both found anti-female sexist humor more acceptable and enjoyed it more than women; that sexist humor was found to be more personally acceptable when communicated by a woman; that hostile sexism was positively associated with personal acceptance of sexist humor as inoffensive; and that perceived social acceptance was positively associated with personal acceptance of disparaging humor as inoffensive.
ABSTRACT: An experiment examined factors that inform participants’ enjoyment of anti-female humor and their acceptance of the humor as inoffensive. Participants (n = 101) were exposed to sexist humor that was communicated by either (a) a male disparager, (b) a female disparager, or (c) a disparager whose sex was not identified. A path model examined the contribution of four predictors – the experimental manipulation and audience members’ hostile sexism, sex, and perceptions of social acceptance of the humor – in their reported personal acceptance and enjoyment of the insulting humor. The results suggested that men both found anti-female sexist humor more acceptable and enjoyed it more than women; that sexist humor was found to be more personally acceptable when communicated by a woman; that hostile sexism was positively associated with personal acceptance of sexist humor as inoffensive; and that perceived social acceptance was positively associated with personal acceptance of disparaging humor as inoffensive.
Sexual Identity & Behavior Among U.S. High School Students, 2005–2015: Prevalence of non-heterosexual identities increased over time, but only female youth reported significantly more same-sex behavior over time
Sexual Identity and Behavior Among U.S. High School Students, 2005–2015. Gregory Phillips II. Archives of Sexual Behavior, May 23 2019. https://link.springer.com/article/10.1007/s10508-019-1404-y
Abstract: Sexual orientation is a multidimensional construct which is increasingly recognized as an important demographic characteristic in population health research. For this study, weighted Youth Risk Behavior Survey data were pooled across 47 jurisdictions biennially from 2005 to 2015, resulting in a national sample of 98 jurisdiction-years (344,815 students). Respondents were a median of 15.5 years, 49.9% male, and 48.8% White. Sexual identity and behavior trends from 2005 to 2015 were assessed with logistic regression analysis. Overall, 13.9% of females and 7.0% of males identified as lesbian, gay, bisexual (LGB), or not sure, while 9.1% of females and 4.2% of males indicated both same-and-different-sex behavior or same-sex behavior. In total, 17.0% of female and 8.5% of male youth reported non-heterosexual (LGB or not sure) sexual identity, same-sex sexual behavior, or both. LGB youth were approximately twice as likely as other youth to report lifetime sexual behavior. White and Asian youth were less likely to report non-heterosexual identity and/or have engaged in same-sex sexual behaviors than youth of other races/ethnicities. Prevalence of non-heterosexual identities increased over time for both sexes, but only female youth reported significantly more same-sex behavior over time. This is the first study to simultaneously assess adolescent sexual identity and behavior over time within a national dataset. These findings are critical for understanding the sexual health needs of adolescents and for informing sexual health policy and practice.
Keywords: Sexual minority Sexual behavior Sexual identity Youth Risk Behavior Survey Sexual orientation
Abstract: Sexual orientation is a multidimensional construct which is increasingly recognized as an important demographic characteristic in population health research. For this study, weighted Youth Risk Behavior Survey data were pooled across 47 jurisdictions biennially from 2005 to 2015, resulting in a national sample of 98 jurisdiction-years (344,815 students). Respondents were a median of 15.5 years, 49.9% male, and 48.8% White. Sexual identity and behavior trends from 2005 to 2015 were assessed with logistic regression analysis. Overall, 13.9% of females and 7.0% of males identified as lesbian, gay, bisexual (LGB), or not sure, while 9.1% of females and 4.2% of males indicated both same-and-different-sex behavior or same-sex behavior. In total, 17.0% of female and 8.5% of male youth reported non-heterosexual (LGB or not sure) sexual identity, same-sex sexual behavior, or both. LGB youth were approximately twice as likely as other youth to report lifetime sexual behavior. White and Asian youth were less likely to report non-heterosexual identity and/or have engaged in same-sex sexual behaviors than youth of other races/ethnicities. Prevalence of non-heterosexual identities increased over time for both sexes, but only female youth reported significantly more same-sex behavior over time. This is the first study to simultaneously assess adolescent sexual identity and behavior over time within a national dataset. These findings are critical for understanding the sexual health needs of adolescents and for informing sexual health policy and practice.
Keywords: Sexual minority Sexual behavior Sexual identity Youth Risk Behavior Survey Sexual orientation
After witnessing a conspecific in a negative state, ravens perform in a negatively biased manner; our findings suggest negative emotional contagion in ravens, & in turn advance our understanding of the evolution of empathy
Negative emotional contagion and cognitive bias in common ravens (Corvus corax). Jessie E. C. Adriaense, Jordan S. Martin, Martina Schiestl, Claus Lamm, and Thomas Bugnyar. Proceedings of the National Academy of Sciences, May 20, 2019. https://doi.org/10.1073/pnas.1817066116
Significance: To successfully and efficiently live in social groups, we need information about each other’s emotions. Emotional contagion has been suggested to facilitate such information transmission, yet it remains difficult to measure this in animals. Previous research has often focused on overt behavior but lacked additional methods for investigating emotional valence. This study provides a solution by integrating data on behavior and responses to a cognitive bias test, which is designed to infer a subject’s underlying emotional state. We demonstrate that after witnessing a conspecific in a negative state, ravens perform in a negatively biased manner on a judgment task. Our findings thus suggest negative emotional contagion in ravens, and in turn advance our understanding of the evolution of empathy.
Abstract: Emotional contagion is described as an emotional state matching between subjects, and has been suggested to facilitate communication and coordination in complex social groups. Empirical studies typically focus on the measurement of behavioral contagion and emotional arousal, yet, while highly important, such an approach often disregards an additional evaluation of the underlying emotional valence. Here, we studied emotional contagion in ravens by applying a judgment bias paradigm to assess emotional valence. We experimentally manipulated positive and negative affective states in demonstrator ravens, to which they responded with increased attention and interest in the positive condition, as well as increased redirected behavior and a left-eye lateralization in the negative condition. During this emotion manipulation, another raven observed the demonstrator’s behavior, and we used a bias paradigm to assess the emotional valence of the observer to determine whether emotional contagion had occurred. Observers showed a pessimism bias toward the presented ambiguous stimuli after perceiving demonstrators in a negative state, indicating emotional state matching based on the demonstrators’ behavioral cues and confirming our prediction of negative emotional contagion. We did not find any judgment bias in the positive condition. This result critically expands upon observational studies of contagious play in ravens, providing experimental evidence that emotional contagion is present not only in mammalian but also in avian species. Importantly, this finding also acts as a stepping stone toward understanding the evolution of empathy, as this essential social skill may have emerged across these taxa in response to similar socioecological challenges.
Keywords: emotional contagionavian empathyanimal emotioncognitive bias paradigm
Significance: To successfully and efficiently live in social groups, we need information about each other’s emotions. Emotional contagion has been suggested to facilitate such information transmission, yet it remains difficult to measure this in animals. Previous research has often focused on overt behavior but lacked additional methods for investigating emotional valence. This study provides a solution by integrating data on behavior and responses to a cognitive bias test, which is designed to infer a subject’s underlying emotional state. We demonstrate that after witnessing a conspecific in a negative state, ravens perform in a negatively biased manner on a judgment task. Our findings thus suggest negative emotional contagion in ravens, and in turn advance our understanding of the evolution of empathy.
Abstract: Emotional contagion is described as an emotional state matching between subjects, and has been suggested to facilitate communication and coordination in complex social groups. Empirical studies typically focus on the measurement of behavioral contagion and emotional arousal, yet, while highly important, such an approach often disregards an additional evaluation of the underlying emotional valence. Here, we studied emotional contagion in ravens by applying a judgment bias paradigm to assess emotional valence. We experimentally manipulated positive and negative affective states in demonstrator ravens, to which they responded with increased attention and interest in the positive condition, as well as increased redirected behavior and a left-eye lateralization in the negative condition. During this emotion manipulation, another raven observed the demonstrator’s behavior, and we used a bias paradigm to assess the emotional valence of the observer to determine whether emotional contagion had occurred. Observers showed a pessimism bias toward the presented ambiguous stimuli after perceiving demonstrators in a negative state, indicating emotional state matching based on the demonstrators’ behavioral cues and confirming our prediction of negative emotional contagion. We did not find any judgment bias in the positive condition. This result critically expands upon observational studies of contagious play in ravens, providing experimental evidence that emotional contagion is present not only in mammalian but also in avian species. Importantly, this finding also acts as a stepping stone toward understanding the evolution of empathy, as this essential social skill may have emerged across these taxa in response to similar socioecological challenges.
Keywords: emotional contagionavian empathyanimal emotioncognitive bias paradigm
The general population believes that traumatic experiences can be unconsciously repressed for many years & then recovered; same for deliberate memory suppression; emotionally compelling movies seem a cause of these beliefs
Otgaar, Henry, and Jane Wang. 2019. "Belief in Unconscious Repressed Memory Is Widespread: A Comment on Brewin, Li, Ntarantana, Unsworth, and Mcneilis" (in Press). OSF Preprints. May 23. doi:10.31219/osf.io/a4n7h
Abstract: What does believing in repressed memory mean? In a recent paper in this journal, Brewin, Li, Ntarantana, Unsworth, and McNeilis (in press; Study 3) argued and provided data that when people are asked to indicate their belief in repressed memory, they actually think of deliberate memory suppression rather than unconscious repressed memory. Hence, the authors contended that belief in genuine (unconscious) repression is not in fact widespread in the general population. They further argued that in contrast to belief in unconscious repressed memory, belief in deliberate memory suppression is not scientifically controversial. In this commentary, we show that they are incorrect on both counts. Although Brewin and colleagues surveyed people to indicate their belief in deliberate memory suppression, they neglected to ask their participants whether they (also) believed in unconscious repressed memory. We asked people from the general population whether they believe that traumatic experiences can be unconsciously repressed for many years and then recovered. In two studies of the general population, we found high endorsement rates [Study 1: 59.2% (n = 45); Study 2: 67.1% (n = 53)] of the belief in unconscious repressed memory. These endorsement rates did not statistically differ from endorsement rates to statements on repressed memory and deliberate memory suppression. In contrast to what Brewin et al. argue, belief in unconscious repressed memory is alive and well. Finally, we contend that Brewin et al. overstated the scientific evidence bearing on deliberate repression (suppression).
Abstract: What does believing in repressed memory mean? In a recent paper in this journal, Brewin, Li, Ntarantana, Unsworth, and McNeilis (in press; Study 3) argued and provided data that when people are asked to indicate their belief in repressed memory, they actually think of deliberate memory suppression rather than unconscious repressed memory. Hence, the authors contended that belief in genuine (unconscious) repression is not in fact widespread in the general population. They further argued that in contrast to belief in unconscious repressed memory, belief in deliberate memory suppression is not scientifically controversial. In this commentary, we show that they are incorrect on both counts. Although Brewin and colleagues surveyed people to indicate their belief in deliberate memory suppression, they neglected to ask their participants whether they (also) believed in unconscious repressed memory. We asked people from the general population whether they believe that traumatic experiences can be unconsciously repressed for many years and then recovered. In two studies of the general population, we found high endorsement rates [Study 1: 59.2% (n = 45); Study 2: 67.1% (n = 53)] of the belief in unconscious repressed memory. These endorsement rates did not statistically differ from endorsement rates to statements on repressed memory and deliberate memory suppression. In contrast to what Brewin et al. argue, belief in unconscious repressed memory is alive and well. Finally, we contend that Brewin et al. overstated the scientific evidence bearing on deliberate repression (suppression).
The more attractive a man was judged to be, the more likely it was that participants were willing to have sex with him & the less likely women were to intend to use a condom during sex
Eleftheriou A, Bullock S, Graham CA, Skakoon-Sparling S, Ingham R (2019) Does attractiveness influence condom use intentions in women who have sex with men? PLoS ONE 14(5): e0217152. May 23, 2019. https://doi.org/10.1371/journal.pone.0217152
Abstract
Objectives: Attractiveness judgements have been shown to affect interpersonal relationships. The present study explored the relationships between perceived attractiveness, perceived sexual health status, condom use intentions and condom use resistance in women.
Setting: The study data were collected using an online questionnaire.
Participants: 480 English-speaking women who have sex with men, between 18–32 years old.
Outcome measures: Women were asked to rate the attractiveness of 20 men on the basis of facial photographs, to estimate the likelihood that each man had a sexually transmitted infection (STI), and to indicate their willingness to have sex with each man without a condom. Condom resistance tactics were also measured and their influence on condom use intentions was assessed.
Results: The more attractive a man was judged to be, the more likely it was that participants were willing to have sex with him (r (478) = 0.987, p < .001). Further, the more attractive a man was judged to be, the less likely women were to intend to use a condom during sex (r = -0.552, df = 478, p = .007). The average perceived STI likelihood for a man had no significant association with his average perceived attractiveness or with participants’ average willingness to have sex with him. The more attractive a participant judged herself to be, the more she believed that, overall, men are likely to have a STI (r = 0.103, df = 478, p < .05).
Conclusions: Women’s perceptions of men’s attractiveness influence their condom use intentions; such risk biases should be incorporated into sexual health education programmes and condom use interventions.
Abstract
Objectives: Attractiveness judgements have been shown to affect interpersonal relationships. The present study explored the relationships between perceived attractiveness, perceived sexual health status, condom use intentions and condom use resistance in women.
Setting: The study data were collected using an online questionnaire.
Participants: 480 English-speaking women who have sex with men, between 18–32 years old.
Outcome measures: Women were asked to rate the attractiveness of 20 men on the basis of facial photographs, to estimate the likelihood that each man had a sexually transmitted infection (STI), and to indicate their willingness to have sex with each man without a condom. Condom resistance tactics were also measured and their influence on condom use intentions was assessed.
Results: The more attractive a man was judged to be, the more likely it was that participants were willing to have sex with him (r (478) = 0.987, p < .001). Further, the more attractive a man was judged to be, the less likely women were to intend to use a condom during sex (r = -0.552, df = 478, p = .007). The average perceived STI likelihood for a man had no significant association with his average perceived attractiveness or with participants’ average willingness to have sex with him. The more attractive a participant judged herself to be, the more she believed that, overall, men are likely to have a STI (r = 0.103, df = 478, p < .05).
Conclusions: Women’s perceptions of men’s attractiveness influence their condom use intentions; such risk biases should be incorporated into sexual health education programmes and condom use interventions.
Partisans think their political rivals are selecting biased news sources that bolster extremity: The more undesirably biased voters considered a source, the more news they assumed their political rivals received from that source
Where the Other Side Gets News: Audience Perceptions of Selective Exposure in the 2016 Election. Mallory R Perryman. International Journal of Public Opinion Research, edz012, May 18 2019. https://doi.org/10.1093/ijpor/edz012
Abstract: Building on research on selective exposure, hostile media perceptions, and presumed media influence, this study explores what citizens believe about their political rivals’ news habits and introduces the idea of perceived selective exposure: the extent to which citizens believe their political opponents curate media diets of like-minded political news. Results from a national survey of voters (N = 657) show that during the 2016 U.S. presidential election, voters disagreed about the extent to which prominent news sources favored Hillary Clinton or Donald Trump. The more undesirably biased voters considered a source, the more news they assumed their political rivals received from that source. This perceived selectivity was consequential: A belief that others’ news habits were weighted toward like-minded media was linked to a belief that others’ election news choices had reinforced their attitudes. Partisans think their political rivals are selecting biased news sources that bolster extremity.
Abstract: Building on research on selective exposure, hostile media perceptions, and presumed media influence, this study explores what citizens believe about their political rivals’ news habits and introduces the idea of perceived selective exposure: the extent to which citizens believe their political opponents curate media diets of like-minded political news. Results from a national survey of voters (N = 657) show that during the 2016 U.S. presidential election, voters disagreed about the extent to which prominent news sources favored Hillary Clinton or Donald Trump. The more undesirably biased voters considered a source, the more news they assumed their political rivals received from that source. This perceived selectivity was consequential: A belief that others’ news habits were weighted toward like-minded media was linked to a belief that others’ election news choices had reinforced their attitudes. Partisans think their political rivals are selecting biased news sources that bolster extremity.
Thursday, May 23, 2019
Solving mate shortages thru compensatory mating tactics: Lowering standards, travelling farther to find a satisfactory partner, and abstaining
Jonason, P. K., Betes, S. L., & Li, N. P. (2019). Solving mate shortages: Lowering standards, searching farther, and abstaining. Evolutionary Behavioral Sciences,
http://dx.doi.org/10.1037/ebs0000174
Abstract: Although much work on mating psychology has focused on mate preferences and responses to desirable sexual and romantic offers, less is known about what happens when individuals face a lack of mating options. We present 2 studies on (hypothetical) compensatory mating tactics. In Study 1 (N = 299), participants were asked to imagine they were struggling to find long-term and short-term mates and we revealed sex differences and context-specific effects consistent with parental investment theory. In Study 2 (N = 282), participants were asked to imagine they had been incapable of finding a short-term and long-term mate for 6 months despite actively trying to find one and then report the likelihood of abstaining, lowering their standards, and traveling farther to find a satisfactory partner; results largely (and conceptually) replicated those from Study 1 but document the role of attachment and (self-reported) mate value in accounting for individual differences in adopting the 3 mating tactics. We frame our results in terms of how people might solve mate shortages.
http://dx.doi.org/10.1037/ebs0000174
Abstract: Although much work on mating psychology has focused on mate preferences and responses to desirable sexual and romantic offers, less is known about what happens when individuals face a lack of mating options. We present 2 studies on (hypothetical) compensatory mating tactics. In Study 1 (N = 299), participants were asked to imagine they were struggling to find long-term and short-term mates and we revealed sex differences and context-specific effects consistent with parental investment theory. In Study 2 (N = 282), participants were asked to imagine they had been incapable of finding a short-term and long-term mate for 6 months despite actively trying to find one and then report the likelihood of abstaining, lowering their standards, and traveling farther to find a satisfactory partner; results largely (and conceptually) replicated those from Study 1 but document the role of attachment and (self-reported) mate value in accounting for individual differences in adopting the 3 mating tactics. We frame our results in terms of how people might solve mate shortages.
Humans can use an intuitive sense of statistics to make predictions about uncertain future events; some of these abilities can emerge in preverbal infants and non-human primates such as apes and capuchins
Rhesus macaques use probabilities to predict future events. Francesca De Petrillo, Alexandra G. Rosati. Evolution and Human Behavior, May 23 2019. https://doi.org/10.1016/j.evolhumbehav.2019.05.006
Abstract: Humans can use an intuitive sense of statistics to make predictions about uncertain future events, a cognitive skill that underpins logical and mathematical reasoning. Recent research shows that some of these abilities for statistical inferences can emerge in preverbal infants and non-human primates such as apes and capuchins. An important question is therefore whether animals share the full complement of intuitive reasoning abilities demonstrated by humans, as well as what evolutionary contexts promote the emergence of such skills. Here, we examined whether free-ranging rhesus macaques (Macaca mulatta) can use probability information to infer the most likely outcome of a random lottery, in the first test of whether primates can make such inferences in the absence of direct prior experience. We developed a novel expectancy-violation looking time task, adapted from prior studies of infants, in order to assess the monkeys' expectations. In Study 1, we confirmed that monkeys (n = 20) looked similarly at different sampled items if they had no prior knowledge about the population they were drawn from. In Study 2, monkeys (n = 80) saw a dynamic ‘lottery’ machine containing a mix of two types of fruit outcomes, and then saw either the more common fruit (expected trial) or the relatively rare fruit (unexpected trial) fall from the machine. We found that monkeys looked longer when they witnessed the unexpected outcome. In Study 3, we confirmed that this effect depended on the causal relationship between the sample and the population, not visual mismatch: monkeys (n = 80) looked equally at both outcomes if the experimenter pulled the sampled item from her pocket. These results reveal that rhesus monkeys spontaneously use information about probability to reason about likely outcomes, and show how comparative studies of nonhumans can disentangle the evolutionary history of logical reasoning capacities.
Abstract: Humans can use an intuitive sense of statistics to make predictions about uncertain future events, a cognitive skill that underpins logical and mathematical reasoning. Recent research shows that some of these abilities for statistical inferences can emerge in preverbal infants and non-human primates such as apes and capuchins. An important question is therefore whether animals share the full complement of intuitive reasoning abilities demonstrated by humans, as well as what evolutionary contexts promote the emergence of such skills. Here, we examined whether free-ranging rhesus macaques (Macaca mulatta) can use probability information to infer the most likely outcome of a random lottery, in the first test of whether primates can make such inferences in the absence of direct prior experience. We developed a novel expectancy-violation looking time task, adapted from prior studies of infants, in order to assess the monkeys' expectations. In Study 1, we confirmed that monkeys (n = 20) looked similarly at different sampled items if they had no prior knowledge about the population they were drawn from. In Study 2, monkeys (n = 80) saw a dynamic ‘lottery’ machine containing a mix of two types of fruit outcomes, and then saw either the more common fruit (expected trial) or the relatively rare fruit (unexpected trial) fall from the machine. We found that monkeys looked longer when they witnessed the unexpected outcome. In Study 3, we confirmed that this effect depended on the causal relationship between the sample and the population, not visual mismatch: monkeys (n = 80) looked equally at both outcomes if the experimenter pulled the sampled item from her pocket. These results reveal that rhesus monkeys spontaneously use information about probability to reason about likely outcomes, and show how comparative studies of nonhumans can disentangle the evolutionary history of logical reasoning capacities.
We assessed 10 individuals who reported abduction by space aliens and whose claims were linked to apparent episodes of sleep paralysis during which hypnopompic hallucinations were interpreted as alien beings
Sleep Paralysis, Sexual Abuse, and Space Alien Abduction. Richard J. McNally, Susan A. Clancy. Transcultural Psychiatry, March 1, 2005. https://doi.org/10.1177/1363461505050715
Abstract: Sleep paralysis accompanied by hypnopompic (‘upon awakening’) hallucinations is an often-frightening manifestation of discordance between the cognitive/perceptual and motor aspects of rapid eye movement (REM) sleep. Awakening sleepers become aware of an inability to move, and sometimes experience intrusion of dream mentation into waking consciousness (e.g. seeing intruders in the bedroom). In this article, we summarize two studies. In the first study, we assessed 10 individuals who reported abduction by space aliens and whose claims were linked to apparent episodes of sleep paralysis during which hypnopompic hallucinations were interpreted as alien beings. In the second study, adults reporting repressed, recovered, or continuous memories of childhood sexual abuse more often reported sleep paralysis than did a control group. Among the 31 reporting sleep paralysis, only one person linked it to abuse memories. This person was among the six recovered memory participants who reported sleep paralysis (i.e. 17% rate of interpreting it as abuse-related). People rely on personally plausible cultural narratives to interpret these otherwise baffling sleep paralysis episodes.
Keywords: alien abduction, recovered memories, sexual abuse, sleep paralysis
Abstract: Sleep paralysis accompanied by hypnopompic (‘upon awakening’) hallucinations is an often-frightening manifestation of discordance between the cognitive/perceptual and motor aspects of rapid eye movement (REM) sleep. Awakening sleepers become aware of an inability to move, and sometimes experience intrusion of dream mentation into waking consciousness (e.g. seeing intruders in the bedroom). In this article, we summarize two studies. In the first study, we assessed 10 individuals who reported abduction by space aliens and whose claims were linked to apparent episodes of sleep paralysis during which hypnopompic hallucinations were interpreted as alien beings. In the second study, adults reporting repressed, recovered, or continuous memories of childhood sexual abuse more often reported sleep paralysis than did a control group. Among the 31 reporting sleep paralysis, only one person linked it to abuse memories. This person was among the six recovered memory participants who reported sleep paralysis (i.e. 17% rate of interpreting it as abuse-related). People rely on personally plausible cultural narratives to interpret these otherwise baffling sleep paralysis episodes.
Keywords: alien abduction, recovered memories, sexual abuse, sleep paralysis
Senegal: In urban areas, being a woman increases probability of a worker being informal by 8.5%; education is usually more relevant for women; having kids reduces men’s probability but increases women’s
Informality and Gender Gaps Going Hand in Hand. Vivian Malta; Lisa L Kolovich; Angelica Martinez; Marina Mendes Tavares. IMF Working Paper No. 19/112, May 23, 2019. https://www.imf.org/en/Publications/WP/Issues/2019/05/23/Informality-and-Gender-Gaps-Going-Hand-in-Hand-46888
Summary: In sub-Saharan Africa women work relatively more in the informal sector than men. Many factors could explain this difference, including women’s lower education levels, legal barriers, social norms and demographic characteristics. Cross-country comparisons indicate strong associations between gender gaps and higher female informality. This paper uses microdata from Senegal to assess the probability of a worker being informal, and our main findings are: (i) in urban areas, being a woman increases this probability by 8.5 percent; (ii) education is usually more relevant for women; (iii) having kids reduces men’s probability of being informal but increases women’s.
Summary: In sub-Saharan Africa women work relatively more in the informal sector than men. Many factors could explain this difference, including women’s lower education levels, legal barriers, social norms and demographic characteristics. Cross-country comparisons indicate strong associations between gender gaps and higher female informality. This paper uses microdata from Senegal to assess the probability of a worker being informal, and our main findings are: (i) in urban areas, being a woman increases this probability by 8.5 percent; (ii) education is usually more relevant for women; (iii) having kids reduces men’s probability of being informal but increases women’s.
Fruit bats, social mammals, form seasonal bonds through producer-scrounger interactions; females mate with males from which they scrounge food; each female scrounges from a unique set of preferred males, & no male prevailed
Food for Sex in Bats Revealed as Producer Males Reproduce with Scrounging Females. Lee Harten et al. Current Biology, May 23 2019. https://doi.org/10.1016/j.cub.2019.04.066
Highlights
• Egyptian fruit bats form seasonal bonds through producer-scrounger interactions
• Genetic paternity tests of pups were used to examine the food-for-sex hypothesis
• Females mate with males from which they scrounge food
• Each female scrounges from a unique set of preferred males, and no male prevailed
Summary: Food sharing is often evolutionarily puzzling, because the provider’s benefits are not always clear. Sharing among kin may increase indirect fitness [1], but when non-kin are involved, different mechanisms were suggested to act. Occasionally, “tolerated theft” [2, 3] is observed, merely because defending a resource is not cost effective. Sharing may also be explained as “costly signaling” [4, 5], where individuals signal their high qualities by distributing acquired resources, as has been suggested to occur in certain human cultures [6]. Alternatively, a transferred food item might be compensated for in later interactions [7]. In vampire bats, blood sharing reflects reciprocity between non-kin colony members [8, 9, 10], and long-term social bonds affect food sharing in chimpanzees [11]. Food may also be exchanged for other goods or social benefits [12, 13, 14]. One reciprocity-based explanation for intersexual food sharing is the food-for-sex hypothesis [15, 16, 17]. This hypothesis proposes that males share food with females in exchange for mating opportunities. Studies on human hunter-gatherer societies suggest that males with increased foraging success have higher reproductive success [18, 19]. Male chimpanzees, which in contrast to humans do not maintain pair bonds, were suggested to share food with females to increase their mating opportunities [16] (but see [20]). Bats, which are long-lived social mammals [21, 22], provide an opportunity to study long-term social reciprocity mechanisms. We monitored producer-scrounger interactions of a captive Egyptian fruit bat (Rousettus aegyptiacus) colony for more than a year and genetically determined the paternity of the pups that were born in the colony. We found that females carry the young of males from which they used to scrounge food, supporting the food-for-sex hypothesis in this species.
Food for Sex in Bats Revealed as Producer Males Reproduce with Scrounging Females
Highlights
• Egyptian fruit bats form seasonal bonds through producer-scrounger interactions
• Genetic paternity tests of pups were used to examine the food-for-sex hypothesis
• Females mate with males from which they scrounge food
• Each female scrounges from a unique set of preferred males, and no male prevailed
Summary: Food sharing is often evolutionarily puzzling, because the provider’s benefits are not always clear. Sharing among kin may increase indirect fitness [1], but when non-kin are involved, different mechanisms were suggested to act. Occasionally, “tolerated theft” [2, 3] is observed, merely because defending a resource is not cost effective. Sharing may also be explained as “costly signaling” [4, 5], where individuals signal their high qualities by distributing acquired resources, as has been suggested to occur in certain human cultures [6]. Alternatively, a transferred food item might be compensated for in later interactions [7]. In vampire bats, blood sharing reflects reciprocity between non-kin colony members [8, 9, 10], and long-term social bonds affect food sharing in chimpanzees [11]. Food may also be exchanged for other goods or social benefits [12, 13, 14]. One reciprocity-based explanation for intersexual food sharing is the food-for-sex hypothesis [15, 16, 17]. This hypothesis proposes that males share food with females in exchange for mating opportunities. Studies on human hunter-gatherer societies suggest that males with increased foraging success have higher reproductive success [18, 19]. Male chimpanzees, which in contrast to humans do not maintain pair bonds, were suggested to share food with females to increase their mating opportunities [16] (but see [20]). Bats, which are long-lived social mammals [21, 22], provide an opportunity to study long-term social reciprocity mechanisms. We monitored producer-scrounger interactions of a captive Egyptian fruit bat (Rousettus aegyptiacus) colony for more than a year and genetically determined the paternity of the pups that were born in the colony. We found that females carry the young of males from which they used to scrounge food, supporting the food-for-sex hypothesis in this species.
Food for Sex in Bats Revealed as Producer Males Reproduce with Scrounging Females
People who posted health messages on social media subsequently became more likely to act on those, not wanting to appear as hypocrites
When audiences become advocates: Self-induced behavior change through health message posting in social media. Robin L. Nabi et al. Computers in Human Behavior, May 23 2019. https://doi.org/10.1016/j.chb.2019.05.030
Highlights
● Posting a health video to Facebook enhanced the poster’s own health behavior.
● Message sharing was best predicted by intensity of emotional response.
● Health behavior self-efficacy also boosted message sharing.
● Directives to share the message did not boost sharing behavior.
Abstract: Couched within the self-effects paradigm of social media influence, this research examines how posting a health promotion message to one’s social media influences one’s own, versus others’, later health behaviors, with emphasis on emotional intensity and message sharing directives. 382 participants viewed one of eight versions of a melanoma awareness video and were given the opportunity to post it to their Facebook page. Video sharers reported increased sun safety behavior one week later, even after accounting for a range of sun safety-related predictors. Emotional intensity and self-efficacy emerged as key message sharing predictors. These findings align with cognitive dissonance theory, offering unique evidence in a mediated context with relatively enduring effects, and expands the dialogue about the self-persuasive power of social media.
Highlights
● Posting a health video to Facebook enhanced the poster’s own health behavior.
● Message sharing was best predicted by intensity of emotional response.
● Health behavior self-efficacy also boosted message sharing.
● Directives to share the message did not boost sharing behavior.
Abstract: Couched within the self-effects paradigm of social media influence, this research examines how posting a health promotion message to one’s social media influences one’s own, versus others’, later health behaviors, with emphasis on emotional intensity and message sharing directives. 382 participants viewed one of eight versions of a melanoma awareness video and were given the opportunity to post it to their Facebook page. Video sharers reported increased sun safety behavior one week later, even after accounting for a range of sun safety-related predictors. Emotional intensity and self-efficacy emerged as key message sharing predictors. These findings align with cognitive dissonance theory, offering unique evidence in a mediated context with relatively enduring effects, and expands the dialogue about the self-persuasive power of social media.
Chimpanzees: A case of food storage shows some future-oriented cognition; we need for a more nuanced interpretation of their cognitive skills & an in-depth understanding of their unique socio-ecological niche
Wild chimpanzees (Pan troglodytes troglodytes) exploit tortoises (Kinixys erosa) via percussive technology. Simone Pika, Harmonie Klein, Sarah Bunel, Pauline Baas, Erwan Théleste & Tobias Deschner. Scientific Reports 9, Article number: 7661 (2019). https://www.nature.com/articles/s41598-019-43301-8
Abstract: Chimpanzees (Pan troglodytes), one of humankinds’ closest living relatives, are known to hunt and consume the meat of various animal taxa. Although some researchers have presented indirect evidence that chimpanzees may also prey on tortoises, until now, direct observations of this behaviour did not exist. Here, we provide systematic descriptions of the first observations of chimpanzee predation on tortoises (Kinixys erosa). We made these unprecedented observations on newly habituated chimpanzees (Pan troglodytes troglodytes) of the Rekambo community, living in the Loango National Park, Gabon. The behaviour qualified as customary, that is occurring in most or all adult males, involved a distinct smashing technique, and resulted frequently in food sharing with other group members. Our observations shed new light on the hitherto little understood percussive technology of chimpanzees, and expand our current knowledge on chimpanzees’ dietary and predatory repertoires with respect to reptiles. We also report a case of food storage and discuss it in the context of future-oriented cognition. Our findings suggest the need for more nuanced interpretations of chimpanzees’ cognitive skills in combination with an in-depth understanding of their unique socio-ecological niches. They further emphasize the importance of nonhuman primate field observations to inform theories of hominin evolution.
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My comments: I intuitively didn't trust the assurances that these primates didn't think of the next day. Here, they store some of the food for the next day.
There are lots of reports of chimps not saving tools for the next day's labors. But this is probably so because most are too simple. Now, some have been seen thinking of their needs in the future.
Abstract: Chimpanzees (Pan troglodytes), one of humankinds’ closest living relatives, are known to hunt and consume the meat of various animal taxa. Although some researchers have presented indirect evidence that chimpanzees may also prey on tortoises, until now, direct observations of this behaviour did not exist. Here, we provide systematic descriptions of the first observations of chimpanzee predation on tortoises (Kinixys erosa). We made these unprecedented observations on newly habituated chimpanzees (Pan troglodytes troglodytes) of the Rekambo community, living in the Loango National Park, Gabon. The behaviour qualified as customary, that is occurring in most or all adult males, involved a distinct smashing technique, and resulted frequently in food sharing with other group members. Our observations shed new light on the hitherto little understood percussive technology of chimpanzees, and expand our current knowledge on chimpanzees’ dietary and predatory repertoires with respect to reptiles. We also report a case of food storage and discuss it in the context of future-oriented cognition. Our findings suggest the need for more nuanced interpretations of chimpanzees’ cognitive skills in combination with an in-depth understanding of their unique socio-ecological niches. They further emphasize the importance of nonhuman primate field observations to inform theories of hominin evolution.
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My comments: I intuitively didn't trust the assurances that these primates didn't think of the next day. Here, they store some of the food for the next day.
There are lots of reports of chimps not saving tools for the next day's labors. But this is probably so because most are too simple. Now, some have been seen thinking of their needs in the future.
Consumers select and prepare foods with higher amounts of sugar when experiencing sadness relative to when they feel guilt
The effects of guilt and sadness on sugar consumption. Sarah Lefebvre, Jonathan Hasford, Ze Wang. Journal of Business Research, Volume 100, July 2019, Pages 130-138. https://doi.org/10.1016/j.jbusres.2019.03.023
Abstract: This research examines how the discrete negative emotions of guilt and sadness impact individual preference for carbohydrates, specifically in the form of sugar. Using Cognitive Appraisal Theory and research in biological psychology, we identify how these two discrete emotions influence the release of cortisol, which impacts sugar preferences. The results of four studies indicate that consumers select and prepare foods with higher amounts of sugar when experiencing sadness relative to when they feel guilt. Implications for public policy as well as marketing practitioners are discussed.
Abstract: This research examines how the discrete negative emotions of guilt and sadness impact individual preference for carbohydrates, specifically in the form of sugar. Using Cognitive Appraisal Theory and research in biological psychology, we identify how these two discrete emotions influence the release of cortisol, which impacts sugar preferences. The results of four studies indicate that consumers select and prepare foods with higher amounts of sugar when experiencing sadness relative to when they feel guilt. Implications for public policy as well as marketing practitioners are discussed.
Shoplifted items, as advertised via ‘haul’ photographs on social media, would be those relevant for increasing mate value (cosmetic, skin and hair care products, perfumes, and products that signal luxury and financial status)
The Five Finger Discount: Shoplifting as a Reproductive Strategy for Increasing Mate Value. Catherine A. Bourgeois, Geneva Reid, Maryanne L. Fisher. Human Ethology, Volume 34, 83-92, published May 23, 2019
https://doi.org/10.22330/he/34/083-092
ABSTRACT: Shoplifting, the act of taking an item from a store without paying for it, is prevalent on social media platforms. Shoplifters post photographs featuring their stolen items, often including the retail value of each item, and tag the photograph as either a ‘lifting haul’ or ‘shoplifting haul’ so that it may be found by others. We argue that the items targeted for shoplifting relate to one’s desire to increase their mate value. In contemporary life, one has the ability to alter and manipulate their perceived mate value, via the aid of cosmetic, skin and hair care products, perfumes, and products that signal luxury and financial status. When viewed in this context, an evolutionary analysis of shoplifting via the specific items targeted for theft may shed light on intrasexual competition in terms of individuals competing to improve their relative mate value. Hence, we hypothesized that shoplifted items, as advertised via ‘haul’ photographs on social media, would be those relevant for increasing mate value (e.g., improve one’s appearance or markers of financial status). A researcher blind to the study hypothesis coded the stolen items within the photographs and the coded items were then categorized into themes for analysis. Our hypothesis was supported. We discuss the use of social media platforms for effectively conducting human ethological research.
Keywords:Social media, Mate value, Shoplifting, Luxury products, Intrasexual competition.
https://doi.org/10.22330/he/34/083-092
ABSTRACT: Shoplifting, the act of taking an item from a store without paying for it, is prevalent on social media platforms. Shoplifters post photographs featuring their stolen items, often including the retail value of each item, and tag the photograph as either a ‘lifting haul’ or ‘shoplifting haul’ so that it may be found by others. We argue that the items targeted for shoplifting relate to one’s desire to increase their mate value. In contemporary life, one has the ability to alter and manipulate their perceived mate value, via the aid of cosmetic, skin and hair care products, perfumes, and products that signal luxury and financial status. When viewed in this context, an evolutionary analysis of shoplifting via the specific items targeted for theft may shed light on intrasexual competition in terms of individuals competing to improve their relative mate value. Hence, we hypothesized that shoplifted items, as advertised via ‘haul’ photographs on social media, would be those relevant for increasing mate value (e.g., improve one’s appearance or markers of financial status). A researcher blind to the study hypothesis coded the stolen items within the photographs and the coded items were then categorized into themes for analysis. Our hypothesis was supported. We discuss the use of social media platforms for effectively conducting human ethological research.
Keywords:Social media, Mate value, Shoplifting, Luxury products, Intrasexual competition.
Tech heavy users are lower in well-being than less frequent users; tech nonusers are generally lower in well-being than light users of digital media, suggesting that limited use may be beneficial
More Time on Technology, Less Happiness? Associations Between Digital-Media Use and Psychological Well-Being. Jean M. Twenge. Current Directions in Psychological Science, May 22, 2019. https://doi.org/10.1177/0963721419838244
Abstract: Studies using large samples consistently find that more frequent users of digital media are lower in psychological well-being than less frequent users; even data sets used as evidence for weak effects show that twice as many heavy users (vs. light users) are low in well-being. Differences in perspective may stem from the statistics used; I argue that comparing well-being across levels of digital-media use is more useful than the percentage of variance explained, as most studies on digital-media use do not measure other influences on well-being (e.g., genetics, trauma), and these other influences, unlike frequency of digital-media use, are rarely controllable. Nonusers are generally lower in well-being than light users of digital media, however, suggesting that limited use may be beneficial. Longitudinal and experimental studies suggest that at least some of the causation moves from digital-media use to lower well-being. Mechanisms may include the displacement of activities more beneficial to well-being (sleep, face-to-face social interaction), upward social comparison, and cyberbullying.
Keywords: digital media, well-being, happiness, depression, social media, electronic devices
Check also The Sad State of Happiness in the United States and the Role of Digital Media. Jean M. Twenge. World Happiness Report 2019, Mar 20 2019. https://www.bipartisanalliance.com/2019/03/the-sad-state-of-happiness-in-united.html
Abstract: Studies using large samples consistently find that more frequent users of digital media are lower in psychological well-being than less frequent users; even data sets used as evidence for weak effects show that twice as many heavy users (vs. light users) are low in well-being. Differences in perspective may stem from the statistics used; I argue that comparing well-being across levels of digital-media use is more useful than the percentage of variance explained, as most studies on digital-media use do not measure other influences on well-being (e.g., genetics, trauma), and these other influences, unlike frequency of digital-media use, are rarely controllable. Nonusers are generally lower in well-being than light users of digital media, however, suggesting that limited use may be beneficial. Longitudinal and experimental studies suggest that at least some of the causation moves from digital-media use to lower well-being. Mechanisms may include the displacement of activities more beneficial to well-being (sleep, face-to-face social interaction), upward social comparison, and cyberbullying.
Keywords: digital media, well-being, happiness, depression, social media, electronic devices
Check also The Sad State of Happiness in the United States and the Role of Digital Media. Jean M. Twenge. World Happiness Report 2019, Mar 20 2019. https://www.bipartisanalliance.com/2019/03/the-sad-state-of-happiness-in-united.html
We say that olfaction is a very powerful thing, that we recognize some smells from our childhood when we find them again later in life, but we almost never dream smells.
Olfactory perception in dreams: Analysis of a long dream series. Michael Schredl. International Journal of Dream Research, Vol 12, No 1 (April 2019)
https://doi.org/10.11588/ijodr.2019.1.57845
Abstract: The present study analyzed the frequency of olfactory perceptions in a long dream series (N = 11,180 dreams) reported by a single participant. Overall, about 0.30% of the dreams included references to olfactory perceptions with unpleasant odors outweighing positive ones. Moreover, most of the olfactory perceptions are uncommon with regard to typical everyday life. To expand these findings, it would be very interesting to study larger samples using a diary paradigm including explicit questions about type, quality, and commonness of the dream odors.
4. Discussion
The present findings confirm previous results showing that spontaneously mentioned olfactory perceptions in dreams are rare since the frequency found in this male dreamer (0.30%) was close to the figure of 0.11% diary dreams re-ported by males that include references to olfactory percep-tions (Zadra et al., 1998). However, one has to keep in mind that the dreamer was not aware of the study’s rationale, i.e., analyzing olfactory perceptions, and, thus, the spontaneously reported olfactory perceptions might be an underestimation compared to a paradigm with explicit questions about sensory perceptions after recording the dreams (Carskadon et al., 1989).
From a methodological viewpoint it has to be considered that the codings were done by the dreamer himself alone; there was no second external judge so that interrater reliabilities could be ascertained. However, previous research indicated that for simple scales measuring the presence or absence of a specific topic have shown high interrater reli-ability (Schredl, Burchert, & Grabatin, 2004). As reported in previous studies (Arshamian, 2007; Carska-don et al., 1989; Monroe, 1899; Stevenson & Case, 2004-05; Weitz et al., 2010) the olfactory perception included a large variety of topics. However, a closer look showed that only one third of the contexts in which olfactory perceptions in the dreams were experienced also occurred in the dream-er’s everyday life, most of the olfactory perception contexts were unusual for the dreamer or even bizarre (ketchup with fish smell) – indicating the dreams are not simple replays of waking life experiences (Fosse, Fosse, Hobson, & Stick-gold, 2003; Malinowski & Horton, 2014). This contributes to the discussion whether dream content is continuous and/
discontinuous to waking life (Hobson & Schredl, 2011). In this context, it would be interesting to study odor experts (perfumers, chefs, oenologists etc.) who focus quite often on olfactory perceptions during the day.
Most of the spontaneously reported odors in this dream series were unpleasant. One might speculate that there might be a report bias similar to the underreporting of positive emotions compared to negative emotions (Röver & Schredl, 2017; Schredl & Doll, 1998; Sikka, Feilhauer, Valli, & Revon-suo, 2017). To test this hypothesis, it would be interesting to ask explicitly for olfactory perceptions in the dream and their emotional quality after the dream is recorded. Although the reported dream examples in the literature are mainly nega-tive (Wayne & Clinco, 1959; Weed & Hallam, 1896; Zadra et al., 1998), the preponderance of negative odors in dreams might be characteristic for this special dreamer, i.e., larger samples are necessary to corroborate this finding. It would also be interesting to test pleasantness/unpleasantness in the context of other sensory modalities like visual or audi-tory experiences. As the olfactory system is closely linked to the limbic system (Gottfried, 2006), one would not expect a strong relationship between perception per se and emo-tions.
To summarize, the analysis of this dream series indicate that olfactory perceptions in dreams are quite rare, mainly unpleasant und uncommon regarding the context compared to everyday life. Due to the design (single case study), the findings raise a lot of questions as to what olfactory per-ceptions look like in larger dream samples and/or in other subjects, for example, in odor experts. It would be very in-teresting to carry out an experimental dream study using ambulatory assessment techniques with one group regularly reminded to focus on olfaction during the day and answer-ing questions about type, pleasantness and commonness of the odor. According to the continuity hypothesis (Schredl, 2018), the percentage of olfactory dreams should increase and the pleasant/unpleasant ratio of waking olfactory per-ception should be reflected in the participants’ dreams. These studies might help to elucidate the interesting rela-tionship between olfaction, sleep, and dreams.
https://doi.org/10.11588/ijodr.2019.1.57845
Abstract: The present study analyzed the frequency of olfactory perceptions in a long dream series (N = 11,180 dreams) reported by a single participant. Overall, about 0.30% of the dreams included references to olfactory perceptions with unpleasant odors outweighing positive ones. Moreover, most of the olfactory perceptions are uncommon with regard to typical everyday life. To expand these findings, it would be very interesting to study larger samples using a diary paradigm including explicit questions about type, quality, and commonness of the dream odors.
4. Discussion
The present findings confirm previous results showing that spontaneously mentioned olfactory perceptions in dreams are rare since the frequency found in this male dreamer (0.30%) was close to the figure of 0.11% diary dreams re-ported by males that include references to olfactory percep-tions (Zadra et al., 1998). However, one has to keep in mind that the dreamer was not aware of the study’s rationale, i.e., analyzing olfactory perceptions, and, thus, the spontaneously reported olfactory perceptions might be an underestimation compared to a paradigm with explicit questions about sensory perceptions after recording the dreams (Carskadon et al., 1989).
From a methodological viewpoint it has to be considered that the codings were done by the dreamer himself alone; there was no second external judge so that interrater reliabilities could be ascertained. However, previous research indicated that for simple scales measuring the presence or absence of a specific topic have shown high interrater reli-ability (Schredl, Burchert, & Grabatin, 2004). As reported in previous studies (Arshamian, 2007; Carska-don et al., 1989; Monroe, 1899; Stevenson & Case, 2004-05; Weitz et al., 2010) the olfactory perception included a large variety of topics. However, a closer look showed that only one third of the contexts in which olfactory perceptions in the dreams were experienced also occurred in the dream-er’s everyday life, most of the olfactory perception contexts were unusual for the dreamer or even bizarre (ketchup with fish smell) – indicating the dreams are not simple replays of waking life experiences (Fosse, Fosse, Hobson, & Stick-gold, 2003; Malinowski & Horton, 2014). This contributes to the discussion whether dream content is continuous and/
discontinuous to waking life (Hobson & Schredl, 2011). In this context, it would be interesting to study odor experts (perfumers, chefs, oenologists etc.) who focus quite often on olfactory perceptions during the day.
Most of the spontaneously reported odors in this dream series were unpleasant. One might speculate that there might be a report bias similar to the underreporting of positive emotions compared to negative emotions (Röver & Schredl, 2017; Schredl & Doll, 1998; Sikka, Feilhauer, Valli, & Revon-suo, 2017). To test this hypothesis, it would be interesting to ask explicitly for olfactory perceptions in the dream and their emotional quality after the dream is recorded. Although the reported dream examples in the literature are mainly nega-tive (Wayne & Clinco, 1959; Weed & Hallam, 1896; Zadra et al., 1998), the preponderance of negative odors in dreams might be characteristic for this special dreamer, i.e., larger samples are necessary to corroborate this finding. It would also be interesting to test pleasantness/unpleasantness in the context of other sensory modalities like visual or audi-tory experiences. As the olfactory system is closely linked to the limbic system (Gottfried, 2006), one would not expect a strong relationship between perception per se and emo-tions.
To summarize, the analysis of this dream series indicate that olfactory perceptions in dreams are quite rare, mainly unpleasant und uncommon regarding the context compared to everyday life. Due to the design (single case study), the findings raise a lot of questions as to what olfactory per-ceptions look like in larger dream samples and/or in other subjects, for example, in odor experts. It would be very in-teresting to carry out an experimental dream study using ambulatory assessment techniques with one group regularly reminded to focus on olfaction during the day and answer-ing questions about type, pleasantness and commonness of the odor. According to the continuity hypothesis (Schredl, 2018), the percentage of olfactory dreams should increase and the pleasant/unpleasant ratio of waking olfactory per-ception should be reflected in the participants’ dreams. These studies might help to elucidate the interesting rela-tionship between olfaction, sleep, and dreams.
In the pre-Christmas shopping season prosocial subjects almost donate 50% less compared to prosocials in summer; the higher prosocials’ self-reported stress level, the lower the donations; no "donation fatigue" effect
Müller Stephan, Rau HA (2019) Too cold for warm glow? Christmas-season effects in charitable giving. PLoS ONE 14(5): e0215844. https://doi.org/10.1371/journal.pone.0215844
Abstract: This paper analyzes seasonal effects and their potential drivers in charitable giving. We conduct two studies to analyze whether donations to the German Red Cross differ between the Christmas season and summer. In study 1 we find that in the pre-Christmas shopping season prosocial subjects almost donate 50% less compared to prosocials in summer. In study 2 we replicate the low donations in the Christmas season. In an extensive questionnaire we control for several causes of this effect. The data suggest that the higher prosocials’ self-reported stress level, the lower the donations. The higher their relative savings, the lower the giving. Our questionnaire rules out that “donation fatigue” matters. That is, donations do not depend on the number of charitable campaigns subjects are confronted with and their engagement in these activities during Christmas season outside the lab.
Abstract: This paper analyzes seasonal effects and their potential drivers in charitable giving. We conduct two studies to analyze whether donations to the German Red Cross differ between the Christmas season and summer. In study 1 we find that in the pre-Christmas shopping season prosocial subjects almost donate 50% less compared to prosocials in summer. In study 2 we replicate the low donations in the Christmas season. In an extensive questionnaire we control for several causes of this effect. The data suggest that the higher prosocials’ self-reported stress level, the lower the donations. The higher their relative savings, the lower the giving. Our questionnaire rules out that “donation fatigue” matters. That is, donations do not depend on the number of charitable campaigns subjects are confronted with and their engagement in these activities during Christmas season outside the lab.
Preoperative anxiety of hospitalized patients exposed to Spiritist “passe” showed greater reductions in anxiety & muscle tension & increases in well-being than those exposed Sham or standard medical care
Effect of Spiritist “Passe” on Preoperative Anxiety of Surgical Patients: A Randomized Controlled Trial, Double-Blind. Élida Mara Carneiro et al. Journal of Religion and Health, May 22 2019. https://link.springer.com/article/10.1007/s10943-019-00841-7
Abstract: The objective of this study was to evaluate the preoperative anxiety of hospitalized patients exposed to Spiritist “passe,” laying on of hand with the intention of healing (Sham) and without laying on of hand. Other variables as depression, pain, physiological parameters, muscle tension, and well-being were assessed. Patients in the Spiritist “passe” intervention group showed greater reductions in anxiety (p < 0.05) and muscle tension (p < 0.01) and increases in well-being (p < 0.01). More marked reductions in preoperative anxiety and muscle tension and improvement in well-being were observed in patients exposed to Spiritist “passe” compared to Sham or standard medical care.
Keywords: Spiritual healing Energy therapies Complementary therapies Anxiety Surgery
Abstract: The objective of this study was to evaluate the preoperative anxiety of hospitalized patients exposed to Spiritist “passe,” laying on of hand with the intention of healing (Sham) and without laying on of hand. Other variables as depression, pain, physiological parameters, muscle tension, and well-being were assessed. Patients in the Spiritist “passe” intervention group showed greater reductions in anxiety (p < 0.05) and muscle tension (p < 0.01) and increases in well-being (p < 0.01). More marked reductions in preoperative anxiety and muscle tension and improvement in well-being were observed in patients exposed to Spiritist “passe” compared to Sham or standard medical care.
Keywords: Spiritual healing Energy therapies Complementary therapies Anxiety Surgery
Does Fraternal Birth Order Predict Male Homosexuality, Bisexuality, and Heterosexual Orientation with Same-Sex Attraction? Evidence from a Greek-Speaking Sample from Greece
Does Fraternal Birth Order Predict Male Homosexuality, Bisexuality, and Heterosexual Orientation with Same-Sex Attraction? Evidence from a Greek-Speaking Sample from Greece. Menelaos Apostolou. Archives of Sexual Behavior, May 22 2019. https://link.springer.com/article/10.1007/s10508-019-01466-3
Abstract: Studies have established that having older brothers is associated with an increased incidence of male homosexuality. This so-called fraternal birth order effect has been found in different times and cultural settings. The current study attempted to examine whether this effect was present in the Greek cultural context and whether it could also predict bisexuality or heterosexuality with occasional same-sex attractions. On the basis of an online sample of 1617 Greek-speaking participants, it was found that, for men, a higher number of older brothers were associated with an increased probability to be homosexual, but it had no effect on the probability to be bisexual or heterosexual with same-sex attractions. In women, the number of older brothers had not any effect on sexual orientation.
Keywords: Fraternal birth order effect Sexual orientation Homosexuality Same-sex attraction Bisexuality Older brothers
Abstract: Studies have established that having older brothers is associated with an increased incidence of male homosexuality. This so-called fraternal birth order effect has been found in different times and cultural settings. The current study attempted to examine whether this effect was present in the Greek cultural context and whether it could also predict bisexuality or heterosexuality with occasional same-sex attractions. On the basis of an online sample of 1617 Greek-speaking participants, it was found that, for men, a higher number of older brothers were associated with an increased probability to be homosexual, but it had no effect on the probability to be bisexual or heterosexual with same-sex attractions. In women, the number of older brothers had not any effect on sexual orientation.
Keywords: Fraternal birth order effect Sexual orientation Homosexuality Same-sex attraction Bisexuality Older brothers
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