Conceptual Similarities Among Fantasy and Religious Orientations: A Developmental Perspective. Rachel B. Thibodeau; Melissa M. Brown; Alexandra F. Nancarrow; Karrie E. Elpers and Ansley Tullos Gilpin. Journal of Cognition and Culture, Volume 18, Issue 1-2, pages 31 – 46 Publication Year : 2018. DOI: 10.1163/15685373-12340021
Abstract: Often in conservative religious populations, fantastical thoughts, interests, and beliefs are discouraged because fantastical beliefs are thought to contradict religious doctrine. However, beliefs in invisible, omnipotent entities such as God and Santa Claus likely rely on similar conceptual abilities that might complement rather than contradict religiosity. Therefore, the present study examined how one’s current and retrospective fantasy orientation together are associated with religious orientation. Data from a sample of 150 adults demonstrated that propensity toward fantasy predicted degree of religious orientation in adulthood, even after controlling for an individual’s openness to experience. Specifically, individuals who reported higher fantastical cognitions and behaviors (currently and retrospectively) reported higher religious orientations. These data are counter to cultural concerns that fantastical play and thinking in childhood might undermine or contradict religious doctrine. This finding has important implications for our understanding of how religiosity and fantasy are related conceptually, as well as how cultural practices may impact conceptual development.
Keywords: conceptual development; fantasy orientation; religiosity
Tuesday, May 8, 2018
Perceptual decisions require the accumulation of sensory information to a response criterion. We report that subthreshold changes in membrane voltage can represent accumulating evidence before a choice
Dendritic Integration of Sensory Evidence in Perceptual Decision-Making. Lukas N. Groschner et al. Cell, Volume 173, Issue 4, p894–905.e13, 3 May 2018. https://doi.org/10.1016/j.cell.2018.03.075 |
Highlights
• Synaptic integration can implement a process of bounded evidence accumulation
• FoxP acts in αβc Kenyon cells (KCs) to repress the voltage-gated potassium channel Shal
• Shal regulates the ability of αβc KCs to summate synaptic inputs over time
• Altering Shal currents in αβc KCs changes spike latencies and decision times
Summary: Perceptual decisions require the accumulation of sensory information to a response criterion. Most accounts of how the brain performs this process of temporal integration have focused on evolving patterns of spiking activity. We report that subthreshold changes in membrane voltage can represent accumulating evidence before a choice. αβ core Kenyon cells (αβc KCs) in the mushroom bodies of fruit flies integrate odor-evoked synaptic inputs to action potential threshold at timescales matching the speed of olfactory discrimination. The forkhead box P transcription factor (FoxP) sets neuronal integration and behavioral decision times by controlling the abundance of the voltage-gated potassium channel Shal (KV4) in αβc KC dendrites. αβc KCs thus tailor, through a particular constellation of biophysical properties, the generic process of synaptic integration to the demands of sequential sampling.
Highlights
• Synaptic integration can implement a process of bounded evidence accumulation
• FoxP acts in αβc Kenyon cells (KCs) to repress the voltage-gated potassium channel Shal
• Shal regulates the ability of αβc KCs to summate synaptic inputs over time
• Altering Shal currents in αβc KCs changes spike latencies and decision times
Summary: Perceptual decisions require the accumulation of sensory information to a response criterion. Most accounts of how the brain performs this process of temporal integration have focused on evolving patterns of spiking activity. We report that subthreshold changes in membrane voltage can represent accumulating evidence before a choice. αβ core Kenyon cells (αβc KCs) in the mushroom bodies of fruit flies integrate odor-evoked synaptic inputs to action potential threshold at timescales matching the speed of olfactory discrimination. The forkhead box P transcription factor (FoxP) sets neuronal integration and behavioral decision times by controlling the abundance of the voltage-gated potassium channel Shal (KV4) in αβc KC dendrites. αβc KCs thus tailor, through a particular constellation of biophysical properties, the generic process of synaptic integration to the demands of sequential sampling.
Confirmed age-related decreases in sexual behavior, ideal frequency of sexual behavior, perceived changes in sexual desire, and openness to an array of sexual behaviors (e.g., having sex with multiple partners), although sexual satisfaction increased with age in women but not men
Gray, P. B., Garcia, J. R., & Gesselman, A. N. (2018). Age-related patterns in sexual behaviors and attitudes among single U.S. Adults: An evolutionary approach. Evolutionary Behavioral Sciences, http://dx.doi.org/10.1037/ebs0000126
Abstract: While a large body of research has sought to understand human longevity and caregiving (e.g., the grandmother hypothesis) from an evolutionary life history perspective, this same view has rarely been brought to bear on age-related changes in human sexuality. Moreover, much of the existing research on age-related patterns in human sexual behaviors and attitudes features samples of predominantly partnered individuals. Here, we test hypotheses concerning age- and sex-related differences in measures of sexuality among 1,522 single adults 21 years of age and older from throughout the United States. Consistent with expectations, we document age-related decreases in sexual behavior, ideal frequency of sexual behavior, perceived changes in sexual desire, and openness to an array of sexual behaviors (e.g., having sex with multiple partners), although sexual satisfaction increased with age in women but not men. Also consistent with expectations, men reported more frequent sexual behavior, ideal frequency of sexual behavior, greater perceived change in sexual motivation, and more openness to various sexual behaviors (e.g., a one-night stand) compared to women. Conversely, women reported higher sexual satisfaction and were more open to getting married than men. Interaction effects were also observed, including between age and sex on sexual satisfaction, with older women reporting relatively higher sexual satisfaction than older men. We place these findings in the wider body of research on human sexuality, contrasting this evolutionary life history approach with prevailing descriptive or biomedical foci on age-related sexual dysfunction.
Abstract: While a large body of research has sought to understand human longevity and caregiving (e.g., the grandmother hypothesis) from an evolutionary life history perspective, this same view has rarely been brought to bear on age-related changes in human sexuality. Moreover, much of the existing research on age-related patterns in human sexual behaviors and attitudes features samples of predominantly partnered individuals. Here, we test hypotheses concerning age- and sex-related differences in measures of sexuality among 1,522 single adults 21 years of age and older from throughout the United States. Consistent with expectations, we document age-related decreases in sexual behavior, ideal frequency of sexual behavior, perceived changes in sexual desire, and openness to an array of sexual behaviors (e.g., having sex with multiple partners), although sexual satisfaction increased with age in women but not men. Also consistent with expectations, men reported more frequent sexual behavior, ideal frequency of sexual behavior, greater perceived change in sexual motivation, and more openness to various sexual behaviors (e.g., a one-night stand) compared to women. Conversely, women reported higher sexual satisfaction and were more open to getting married than men. Interaction effects were also observed, including between age and sex on sexual satisfaction, with older women reporting relatively higher sexual satisfaction than older men. We place these findings in the wider body of research on human sexuality, contrasting this evolutionary life history approach with prevailing descriptive or biomedical foci on age-related sexual dysfunction.
Altruists bias their giving toward those in greater need rather those who may be more competent; subtle nonverbal cues of status influence altruistic decision-making
The financial cost of status signaling: Expansive postural displays are associated with a reduction in the receipt of altruistic donations. Jessica L. Tracy, Conor M. Steckler, Daniel Randles, Eric Mercadante. Evolution and Human Behavior, https://doi.org/10.1016/j.evolhumbehav.2018.05.001
Abstract: Models of human altruism suggest that decisions to help are influenced by assessments of both potential recipients' need state and their competence, as high need increases the value of gifts received, and competent recipients can most effectively use and repay gifts. Need and competence are often inversely related, however, raising the question of how altruists weigh these competing sources of information. We examined the impact of a nonverbal display (expansive posture) that, by signaling high status, simultaneously cues both low need and high competence, on actual altruistic behaviors: donations of financial aid to needy individuals. Across three studies using ecologically valid data drawn from a micro-lending charity website, men who displayed expansive posture while requesting aid faced a substantial reduction in the amount of aid they received; this effect held controlling for a range of relevant covariates. These findings demonstrate that: (a) altruists bias their giving toward those in greater need rather those who may be more competent, and (b) subtle nonverbal cues of status influence altruistic decision-making.
Keywords: Reciprocal altruism; Reciprocity; Banker's paradox; Status signal
Check also Three children are fighting over a flute. Who would you give it to? http://global-is-asian.nus.edu.sg/wp-content/uploads/2017/03/breakfast-lunch-www.brunch.com_.png
And: Individual risk preferences and the demand for redistribution. Manja Gärtner, Johanna Mollerstrom and David Seim. Journal of Public Economics, v 153, September 2017, Pages 49-55. http://www.bipartisanalliance.com/2017/08/individual-risk-preferences-and-demand.html
"We document a statistically significant and robust positive relation between risk aversion and the demand for redistribution that is also economically important. We show that previously used proxies for risk aversion (such as being an entrepreneur or having a history of unemployment) do not capture the effect of our measure of risk aversion but have distinctly different effects on the demand for redistribution."
And: There are several species in which inequity aversion has been measured, like common marmosets. http://www.bipartisanalliance.com/2018/02/inequity-aversion-is-observed-in-common.html
And: Social inequality aversion in mice: Analysis with stress-induced hyperthermia and behavioral preference. Shigeru Watanabe. Learning and Motivation, Volume 59, August 2017, Pages 38-46, http://www.bipartisanalliance.com/2017/09/social-inequality-aversion-in-mice.html
And: Which is why some suspect that there is an "Evolutionary Origin of Empathy and Inequality Aversion" http://www.bipartisanalliance.com/2017/09/evolutionary-origin-of-empathy-and.html
And: Even in dictator's games, we try to avoid the taking version, and prefer the giving version: "Over 85% of the dictators in our experiment choose to play a giving game over a taking game when the payoff possibilities are identical and, on average, dictators are willing to sacrifice over 31% of their endowment to avoid taking." http://www.bipartisanalliance.com/2018/02/dictator-game-aversion-to-taking-is.html
And: Do Gender Preference Gaps Impact Policy Outcomes? Ranehill, Eva, and Weber, Roberto A. University of Gothenburg, Department of Economics, Working Papers in Economics #713. http://www.bipartisanalliance.com/2017/11/although-lehman-sisters-may-have-acted.html
Abstract: Models of human altruism suggest that decisions to help are influenced by assessments of both potential recipients' need state and their competence, as high need increases the value of gifts received, and competent recipients can most effectively use and repay gifts. Need and competence are often inversely related, however, raising the question of how altruists weigh these competing sources of information. We examined the impact of a nonverbal display (expansive posture) that, by signaling high status, simultaneously cues both low need and high competence, on actual altruistic behaviors: donations of financial aid to needy individuals. Across three studies using ecologically valid data drawn from a micro-lending charity website, men who displayed expansive posture while requesting aid faced a substantial reduction in the amount of aid they received; this effect held controlling for a range of relevant covariates. These findings demonstrate that: (a) altruists bias their giving toward those in greater need rather those who may be more competent, and (b) subtle nonverbal cues of status influence altruistic decision-making.
Keywords: Reciprocal altruism; Reciprocity; Banker's paradox; Status signal
Check also Three children are fighting over a flute. Who would you give it to? http://global-is-asian.nus.edu.sg/wp-content/uploads/2017/03/breakfast-lunch-www.brunch.com_.png
And: Individual risk preferences and the demand for redistribution. Manja Gärtner, Johanna Mollerstrom and David Seim. Journal of Public Economics, v 153, September 2017, Pages 49-55. http://www.bipartisanalliance.com/2017/08/individual-risk-preferences-and-demand.html
"We document a statistically significant and robust positive relation between risk aversion and the demand for redistribution that is also economically important. We show that previously used proxies for risk aversion (such as being an entrepreneur or having a history of unemployment) do not capture the effect of our measure of risk aversion but have distinctly different effects on the demand for redistribution."
And: There are several species in which inequity aversion has been measured, like common marmosets. http://www.bipartisanalliance.com/2018/02/inequity-aversion-is-observed-in-common.html
And: Social inequality aversion in mice: Analysis with stress-induced hyperthermia and behavioral preference. Shigeru Watanabe. Learning and Motivation, Volume 59, August 2017, Pages 38-46, http://www.bipartisanalliance.com/2017/09/social-inequality-aversion-in-mice.html
And: Which is why some suspect that there is an "Evolutionary Origin of Empathy and Inequality Aversion" http://www.bipartisanalliance.com/2017/09/evolutionary-origin-of-empathy-and.html
And: Even in dictator's games, we try to avoid the taking version, and prefer the giving version: "Over 85% of the dictators in our experiment choose to play a giving game over a taking game when the payoff possibilities are identical and, on average, dictators are willing to sacrifice over 31% of their endowment to avoid taking." http://www.bipartisanalliance.com/2018/02/dictator-game-aversion-to-taking-is.html
And: Do Gender Preference Gaps Impact Policy Outcomes? Ranehill, Eva, and Weber, Roberto A. University of Gothenburg, Department of Economics, Working Papers in Economics #713. http://www.bipartisanalliance.com/2017/11/although-lehman-sisters-may-have-acted.html
Men’s Interest in Allying with a Previous Combatant for Future Group Combat
Men’s Interest in Allying with a Previous Combatant for Future Group Combat. Nicole Barbaro, Justin K. Mogilski, Todd K. Shackelford, Michael N. Pham. Human Nature, https://link.springer.com/article/10.1007/s12110-018-9315-5
Abstract: Intra- and intergroup conflict are likely to have been recurrent features of human evolutionary history; however, little research has investigated the factors that affect men’s combat alliance decisions. The current study investigated whether features of previous one-on-one combat with an opponent affect men’s interest in allying with that opponent for future group combat. Fifty-eight undergraduate men recruited from a psychology department subject pool participated in a one-on-one laboratory fight simulation. We manipulated fight outcome (between-subjects), perceived fighter health asymmetry (within-subjects), and the presence of a witness (within-subjects) over six sets of five rounds of fighting. Following each set, we asked men how interested they would be in allying with their opponent for future group combat. We found that men were more interested in allying with their opponent for future group combat if their opponent won the fight or if a witness was present, but perceived fighter-health asymmetry did not affect men’s decision to ally with their opponent. Exploratory analyses revealed a two-way interaction between fight outcome and the presence of a witness, such that winners without a witness present expressed less interest in allying with their opponent for future group combat. Our findings suggest that men attend to the benefits of allying with a man who has demonstrated relatively superior fighting ability. Alliance with a previous opponent for group combat may vary with the relationship value of the opponent and the utility of demonstrating cooperativeness to third-party observers. These findings inform our understanding of coalition formation.
Abstract: Intra- and intergroup conflict are likely to have been recurrent features of human evolutionary history; however, little research has investigated the factors that affect men’s combat alliance decisions. The current study investigated whether features of previous one-on-one combat with an opponent affect men’s interest in allying with that opponent for future group combat. Fifty-eight undergraduate men recruited from a psychology department subject pool participated in a one-on-one laboratory fight simulation. We manipulated fight outcome (between-subjects), perceived fighter health asymmetry (within-subjects), and the presence of a witness (within-subjects) over six sets of five rounds of fighting. Following each set, we asked men how interested they would be in allying with their opponent for future group combat. We found that men were more interested in allying with their opponent for future group combat if their opponent won the fight or if a witness was present, but perceived fighter-health asymmetry did not affect men’s decision to ally with their opponent. Exploratory analyses revealed a two-way interaction between fight outcome and the presence of a witness, such that winners without a witness present expressed less interest in allying with their opponent for future group combat. Our findings suggest that men attend to the benefits of allying with a man who has demonstrated relatively superior fighting ability. Alliance with a previous opponent for group combat may vary with the relationship value of the opponent and the utility of demonstrating cooperativeness to third-party observers. These findings inform our understanding of coalition formation.
Eyebrows Cue Grandiose Narcissism
Eyebrows Cue Grandiose Narcissism. Miranda Giacomin, Nicholas O. Rule. Journal of Personality, https://doi.org/10.1111/jopy.12396
Abstract
Objective: Though initially charming and inviting, narcissists often engage in negative interpersonal behaviors. Identifying and avoiding narcissists therefore carries adaptive value. Whereas past research has found that people can judge others' grandiose narcissism from their appearance (including their faces), the cues supporting these judgments require further elucidation. Here, we investigated which facial features underlie perceptions of grandiose narcissism and how they convey that information.
Method and Results: In Study 1, we explored the face's features using a variety of manipulations, ultimately finding that accurate judgments of grandiose narcissism particularly depend on a person's eyebrows. In Studies 2A‐2C, we identified eyebrow distinctiveness (e.g., thickness, density) as the primary characteristic supporting these judgments. Finally, we confirmed the eyebrows' importance in Studies 3A and 3B by measuring how much perceptions of narcissism changed when swapping narcissists' and non‐narcissists' eyebrows between faces.
Conclusions: Together, these data show that distinctive eyebrows reveal narcissists' personality to others, providing a basic understanding of the mechanism through which people can identify narcissistic personality traits with potential application to daily life.
Abstract
Objective: Though initially charming and inviting, narcissists often engage in negative interpersonal behaviors. Identifying and avoiding narcissists therefore carries adaptive value. Whereas past research has found that people can judge others' grandiose narcissism from their appearance (including their faces), the cues supporting these judgments require further elucidation. Here, we investigated which facial features underlie perceptions of grandiose narcissism and how they convey that information.
Method and Results: In Study 1, we explored the face's features using a variety of manipulations, ultimately finding that accurate judgments of grandiose narcissism particularly depend on a person's eyebrows. In Studies 2A‐2C, we identified eyebrow distinctiveness (e.g., thickness, density) as the primary characteristic supporting these judgments. Finally, we confirmed the eyebrows' importance in Studies 3A and 3B by measuring how much perceptions of narcissism changed when swapping narcissists' and non‐narcissists' eyebrows between faces.
Conclusions: Together, these data show that distinctive eyebrows reveal narcissists' personality to others, providing a basic understanding of the mechanism through which people can identify narcissistic personality traits with potential application to daily life.
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