To defend their views, Rousseauians resort to a variety of tactics to diminish the apparent frequency & intensity of hunter-gatherer warfare (redefine war, censor ethnographic accounts of warfare, misconstrue archaeological evidence)

Pacifying Hunter-Gatherers. Raymond Hames. Human Nature, April 5 2019.https://link.springer.com/article/10.1007/s12110-019-09340-w

Abstract: There is a well-entrenched schism on the frequency (how often), intensity (deaths per 100,000/year), and evolutionary significance of warfare among hunter-gatherers compared with large-scale societies. To simplify, Rousseauians argue that warfare among prehistoric and contemporary hunter-gatherers was nearly absent and, if present, was a late cultural invention. In contrast, so-called Hobbesians argue that violence was relatively common but variable among hunter-gatherers. To defend their views, Rousseauians resort to a variety of tactics to diminish the apparent frequency and intensity of hunter-gatherer warfare. These tactics include redefining war, censoring ethnographic accounts of warfare in comparative analyses, misconstruing archaeological evidence, and claiming that outside contact inflates the intensity of warfare among hunter-gatherers. These tactics are subject to critical analysis and are mostly found to be wanting. Furthermore, Hobbesians with empirical data have already established that the frequency and intensity of hunter-gatherer warfare is greater compared with large-scale societies even though horticultural societies engage in warfare more intensively than hunter-gatherers. In the end I argue that although war is a primitive trait we may share with chimpanzees and/or our last common ancestor, the ability of hunter-gatherer bands to live peaceably with their neighbors, even though war may occur, is a derived trait that fundamentally distinguishes us socially and politically from chimpanzee societies. It is a point often lost in these debates.

Keywords: Hunter-gatherers War Chimpanzees Peace Comparative research

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In 1997 Lawrence Keeley coined the phrase “pacifying the past” as a critique of scholars who took what one might call a Rousseauian view of conflict in small-scale societies that predated the advent of the state. Along with such notions as living in harmony with the environment (Hames2007) and primordial sexual equality and promiscuity (Ryan andJetha2012 ), Rousseauians believed that war and lethal violence were rare or absent in
small-scale societies and did not become widespread and intense until settled agricultural life when war was “invented” and then elaborated and intensified with the development of the state. Keeley’s direct experience with this perspective stemmed from his research grants being rejected by funding agencies because he sought to investigate what he hypothesized to be defensive fortifications and other forms of archaeological evidence of warfare in non-state societies. Although his War before Civilization (Keeley1997) made a significant impact, those who hold the Rousseauian position have responded, and a major target has revolved around the intensity and frequency of warfare and lethal violence among mobile hunter-gatherers. The terms “Hobbesians” and “Rousseauians” have gained some currency (Gat2015), although alternative contrasts such as Hawks and Doves (Otterbein2004 ) or warfare having a “long chronology” or “short chronology”(Allen and Jones2014 ) make similar distinctions (see Allen2014afor a review of these positions). However, I will use theHobbesian/Rousseauian distinction following the penetrating analysis by Gat (2015) wherein he uses the Australian hunter-gatherer material to clearly expose conceptual and empirical problems for those who would pacify hunter-gatherers. Oddly, Douglas Fry, one of the Rousseauian leaders of this conservative counter, claims that the “pervasive intergroup hostility model”is somehow the main orientation held by many researchers (2006 :10) who investigate hunter-gatherer warfare. Although this allegedly pervasive model includes such things as hunter-gatherer patrilocality and the closed nature of residential bands, the key claim he seeks to refute is that warfare has a deep history and was common among mobile hunter-gatherers. How one demarcates “common” from “rare”is not defined by Fry, even though comparative researchers have created measures of both warfare frequency, or how often it occurs (e.g., Ember and Ember1992a), and warfare intensity, or the probability of an individual being killed by another human through war or homicide (Wrangham et al.2006).
This Rousseauian perspective runs parallel to scholars who cast doubt on the causes,adaptive nature, and intensity of chimpanzee coalitionary violence. A number of researchers, most prominently Power (2005 ), claim chimpanzee violence is not “natural”or adaptive and is largely the consequence of outside factors such as research team presence and disruptions (e.g., feeding stations) or disturbances by farmers or the bush meat trade (Sussman and Marshack2010). Such claims have been empirically discounted through a comparative analysis of 22 chimpanzee communities with and without significant contact (Wilson et al.2014 ). Similarly, as applied to hunter-gatherers, tribal zone theory (Ferguson and Whitehead1991 ) makes a parallel claim: tribal warfare was frequently initiated or intensified as a consequence of colonial invasions. 
The goal of this paper is to assess and critique a variety of positions put forward by Rousseauians to diminish the frequency and intensity of warfare among hunter-gatherers. These tactics include the following: misrepresenting evolutionary theory, reclassifying hunter-gatherers; redefining warfare; censoring ethnographic accounts on hunter-gatherer violence; overemphasizing the role of colonial activities in increasing warfare; and questionable use of archaeological evidence and time lines. Finally, and most importantly, I will also argue that although coalitionary violence is a primitive feature of human life that is likely a continuation of the chimpanzee pattern of intergroup relations, the ability to have peaceful relations with neighboring bands is a unique derived trait that fundamentally distinguishes chimps from humans and may have been partially responsible for our rapid cultural evolution.

Echo chambers? Data on Poland & Hungary do not support the hypothesis of clusters emerging along partisan lines; there are sharp group divisions on Twitter, but the nodes however are diverse & overlapping in terms of political leaning

Are Echo Chambers Based on Partisanship? Twitter and Political Polarity in Poland and Hungary. Paweł Matuszewski, Gabriella Szabó. Social Media + Society, April 4, 2019. https://doi.org/10.1177/2056305119837671

Abstract: In this study, we investigate how Twitter allows individuals in Hungary and Poland to experience different political views. To comprehend citizens’ exposure to political information, “who’s following who?” graphs of 455,912 users in Hungary (851,557 connections) and 1,803,837 users in Poland (10,124,501 connections) are examined. Our conceptual point of departure is that Twitter follower networks tell us whether individuals prefer to be members of a group that receives one-sided political messages, or whether they tend to form politically heterogeneous clusters that cut across ideological lines. Methodologically, such connections are best studied by means of computer-aided quantitative research complemented by the sociocentric approach of network analysis. Our data date from September 2018. The findings for Poland do not support the hypothesis of clusters emerging along partisan lines. Likewise, the Hungarian case reveals sharp group divisions on Twitter, the nodes however are diverse and overlapping in terms of political leaning. The data suggest that exposure and segregation in follower networks are not necessarily based on partisanship.

Keywords: Twitter, political information-seeking, network analysis, Hungary, Poland, echo chamber

Female Sexual Dysfunction seems less prevalent among female adult entertainers than rates commonly quoted for the general population and was more often seen in the women with less satisfying personal sex lives

Dubin JM, Greer AB, Valentine C, et al. Evaluation of Indicators of Female Sexual Dysfunction in Adult Entertainers. J Sex Med 2019;XX:XXX–XXX.
https://doi.org/10.1016/j.jsxm.2019.03.002

Abstract
Introduction: Female sexual dysfunction (FSD) incorporates a wide range of sexual issues within the female population; however, it has not been evaluated among female adult entertainers.

Aim: To evaluate the prevalence of FSD in women working in the adult entertainment industry.

Methods: A 53-question online survey was distributed to female adult entertainers via e-mail through collaboration with the Free Speech Coalition, the North American Trade Association of the Adult Industry. Surveys were sent by the Free Speech Coalition to those within the Performer Availability Screening Services database who met the criteria of having biological vaginas and having experience as adult entertainers. The surveys were answered anonymously. Statistical analysis was performed with Stata/IC 15.1.

Main Outcome Measures: The survey acquired baseline characteristics, use of contraceptives, sexual activity, work vs home sexual satisfaction, and orgasm, in addition to evaluation of female sexual function using the Female Sexual Function Index survey, with a total score <26.55 indicative of FSD.

Results: Of the 147 respondents, 96 (65%) met inclusion criteria of adequately completing the survey, having a biological vagina, and working in the adult entertainment industry. The mean age was 34.1 ± 10.3 years (range 20–66). The average Female Sexual Function Index score was 28.7 ± 5.6, and 24.0% (23 of 96) of entertainers had scores indicative of FSD. Overall, women found their personal sex lives more satisfying when compared with their professional sex lives (3.99 ± 1.40 vs 3.08 ± 1.52, P < .01). When comparing women with FSD to those without FSD, women with FSD had less sexual satisfaction at home (2.8 ± 1.7 vs 4.4 ± 1.0, P < .01), fewer overall sexual events (7.0 ± 6.7 FSD vs 12.9 ± 10.0 non-FSD, P < .01), and fewer satisfying sexual events overall (3.3 ± 4.2 vs 10.7 ± 8.7, P < .01).

Clinical Implications: FSD is prevalent among all women, including those within the adult entertainment industry, and must be addressed during patient interactions.

Strength & Limitation: This is the first study to evaluate the novel group of female adult entertainers. Despite this novel population, the study size is rather small and is susceptible to response bias.

Conclusion: FSD appeared to be less prevalent among female adult entertainers than rates commonly quoted for the general population and was more often seen in the women with less satisfying personal sex lives.

Post-menopausal women provide more care to their kin: Evidence of grandparental caregiving from two large-scale national surveys

Do post-menopausal women provide more care to their kin?: evidence of grandparental caregiving from two large-scale national surveys. Marlise K. Hofer et al. Evolution and Human Behavior, April 4 2019. https://doi.org/10.1016/j.evolhumbehav.2019.04.002

Abstract: Drawing on the logical principles of life-history theory, it may be hypothesized that—compared to pre-menopausal women—post-menopausal women will spend more time caring for grandchildren and other kin. This hypothesis was tested in two studies, on results obtained from two large datasets documenting altruistic behaviors of pre-menopausal and post-menopausal women in the United States (N = 7, 161) and Australia (N = 25, 066). Results from both studies revealed that (even when controlling statistically for age, health, financial resources, and other pertinent variables), post-menopausal women devoted more time to grandparental caregiving. This effect was specific to kin care: Menopause status was not as strongly related to a measure of non-kin-directed altruistic behavior (time spent volunteering). These results provide the first empirical support for a previously-untested behavioral implication of menopause.

Young Norway students in college: No indication of women playing hard-to-get, or of strategically downplaying signals of sexual attraction; little evidence of male sexual overperception

Bendixen, M., Kennair, L. E. O., Biegler, R., & Haselton, M. G. (2019). Adjusting signals of sexual interest in the most recent naturally occurring opposite-sex encounter in two different contexts. Evolutionary Behavioral Sciences, Mar 2019, http://dx.doi.org/10.1037/ebs0000162

Abstract: Sexual signaling is subject to manipulation, and miscommunication may occur because of biased interpretations of signals, or because of strategical downplaying of sexual interest (playing hard-to-get). In this article, we examined initial perceptions of cues from opposite sex partners along with participant reported own sexual attraction and signaled attraction in their most recent naturally occurring potentially sexual opposite sex encounter. Data on heterosexual Norwegian male and female students were collected in two largely different social contexts (during Regular Study Period, Spring 2015: N = 224; during Freshmen Weeks, Early Fall 2015: N = 211). Results show no indication of women playing hard-to-get, or of strategically downplaying signals of sexual attraction. There was evidence of male sexual overperception in Study 1, but this effect was not replicated in Study 2 mainly due to increased levels of sexual attraction in single, freshmen women in that particular social context. For both sexes, reported levels of signaled attraction strongly reflected reports of own sexual attraction. Predictors for who ended up having sex after the encounter differed for women and men. For women, ending up having sex was predicted by the other’s short-term mate value, being freshman, and level of perceived sexual interest from the other after the encounter. For men, ending up having sex was predicted merely by their history of casual sex. It is concluded that women and men adjust their signals of sexual attraction upward or downward relative to their felt attraction to prompt further communication and to gain more information.

The reasons that prevent people from cheating on their partners: An evolutionary account of the propensity not to cheat

The reasons that prevent people from cheating on their partners: An evolutionary account of the propensity not to cheat. Menelaos Apostolou, Rafaella Panayiotou. Personality and Individual Differences, Volume 146, 1 August 2019, Pages 34-40. https://doi.org/10.1016/j.paid.2019.03.041

Highlights
•    Finds 47 reasons that prevent people from cheating
•    Classifies reasons for not cheating in broader factors and domains
•    Finds that women have a higher propensity not to cheat than men
•    Finds that conscientiousness and openness predict the propensity not to cheat

Abstract: Infidelity is a widespread phenomenon across different cultures. Yet, not all people are unfaithful to their partners, and the current study aims to identify the reasons that motivate individuals to hold back from cheating. For this purpose, we developed an evolutionary theoretical framework which could enable a better understanding of the ultimate reasons that motivate people not to cheat on their partners. Furthermore, using a combination of qualitative research methods, we have identified 47 proximate reasons that could prevent people from cheating. By using quantitative research methods in a sample of 576 Greek-speaking participants, we classified these reasons in eight broad factors and two broader domains. One domain reflected considerations about the potential costs of cheating, and the other, considerations about the benefits of the current relationship. Women indicated a higher propensity not to cheat than men, especially if they were satisfied with their relationship, and because they would feel guilty. We also found that, the higher participants scored in conscientiousness the lower their propensity to cheat was, while the higher participants scored in openness the higher their propensity to cheat was.

Human Ingenuity and the Search of Prosperity Ended Drought and Famine in India, despite the doomsayers saying we are all going to die due to El Nino–Southern Oscillation and other events

Drought and Famine in India, 1870–2016. Vimal Mishra et al. Geophysical Research Letters, Jan 22 2019. https://doi.org/10.1029/2018GL081477

Abstract: Millions of people died due to famines in India in the nineteenth and twentieth centuries; however, the relationship of historical famines with drought is complicated and not well understood. Using station‐based observations and simulations, we reconstruct soil moisture (agricultural) drought in India for the period 1870–2016. We show that over this century and a half period, India experienced seven major drought periods (1876–1882, 1895–1900, 1908–1924, 1937–1945, 1982–1990, 1997–2004, and 2011–2015) based on severity‐area‐duration analysis of reconstructed soil moisture. Out of six major famines (1873–74, 1876, 1877, 1896–97, 1899, and 1943) that occurred during 1870–2016, five are linked to soil moisture drought, and one (1943) was not. The three most deadly droughts (1877, 1896, and 1899) were linked with the positive phase of El Niño–Southern Oscillation. Five major droughts were not linked with famine, and three of those five nonfamine droughts occurred after Indian independence in 1947.

Plain Language Summary: India witnessed some of the most famous famines during the late nineteenth and early twentieth centuries. These famines caused millions of deaths primarily due to widespread crop failure. However, the role of agricultural drought in these famines remains unrecognized. Using station‐based observations and simulations from a hydrological model, we reconstructed agricultural droughts and established a linkage between famines and droughts over India. We find that a majority of famines were caused by large‐scale and severe soil moisture droughts that hampered the food production. However, one famine was completely due to the failure of policy during the British era. Expansion of irrigation, better public distribution system, rural employment, and transportation reduced the impact of drought on the lives of people after the independence.

There is a significant gap in happiness levels between religious and nonreligious individuals when they are diagnosed with a disability; it reduces happiness for nonreligious people more than that for religious people

The Effect of Becoming Disabled on the Subjective Well-Being of Religious and Nonreligious People. DaeHwan Kim. Journal of Religion and Health, April 4 2019. https://link.springer.com/article/10.1007/s10943-019-00808-8

Abstract: Positive associations between religiosity and subjective well-being (SWB) have been found in a multitude of studies. However, there has been little effort in documenting the role that religion plays in helping people during the onset of adverse circumstances in their lives. This study investigates the effect of religion on the SWB of the disabled. We utilized secondary data from the Korean Longitudinal Study of Aging from 2006 to 2016 with a sample size of 36,484. Starting with nondisabled participants, we applied a difference-in-differences approach to a fixed-effects model and compared the magnitude of the decrease in SWB resulting from disability between religious individuals and their nonreligious counterparts. The empirical results show that following a religion increased SWB by 0.94 (p < 0.01) and the onset of a disability reduced SWB by 3.57 (p < 0.01) out of 100. Furthermore, there is a significant gap in happiness levels between religious and nonreligious individuals when they are diagnosed with a disability. Becoming disabled reduces SWB for nonreligious people more than that for religious people by 2.62 (p < 0.01). This study confirms that following a religion helps people cope with adverse circumstances such as the onset of a disability.

Keywords: Religion Disability Subjective well-being Happiness Difference-in-differences estimation

National identification (strength of association with the nation state in which an individual resides) predicts lower anxiety and improved health

Opium of the people? National identification predicts well‐being over time. Sammyh S. Khan et al. British Journal of Psychology, April 3 2019. https://doi.org/10.1111/bjop.12398

Abstract: Social group membership and its social‐relational corollaries, for example, social contact, trust, and support, are prophylactic for health. Research has tended to focus on how direct social interactions between members of small‐scale groups (i.e., a local sports team or community group) are conducive to positive health outcomes. The current study provides evidence from a longitudinal cross‐cultural sample (N = 6,748; 18 countries/societies) that the prophylactic effect of group membership is not isolated to small‐scale groups, and that members of groups do not have to directly interact, or in fact know of each other to benefit from membership. Our longitudinal analyses suggest that national identification (strength of association with the nation state in which an individual resides) predicts lower anxiety and improved health; national identification was in fact almost as positively predictive of health status as anxiety was negatively predictive. The findings indicate that identification with large‐scale groups, like small‐scale groups, is palliative, and are discussed in terms of globalization and banal nationalism.

As economic profits grow larger, so do economic losses at the other end of the distribution; the vast majority of the world’s largest companies (the middle 60 pct of the power curve), record near-zero economic profit, on average

What every CEO needs to know about ‘superstar’ companies. Sree Ramaswamy, Michael Birshan, James Manyika, Jacques Bughin, and Jonathan Woetzel. McKinsey Global Institute, April 2019. https://www.mckinsey.com/featured-insights/innovation-and-growth/what-every-ceo-needs-to-know-about-superstar-companies

The superstar effect is real

The distribution of economic profit along the power curve has gotten more skewed over the past 20 years. After adjusting for inflation, today’s superstar companies have 1.6 times more economic profit, on average, than the superstar companies of 20 years ago. It is not just economic profit that qualifies these companies as superstars: they are among the world’s most sought-after employers, most valuable brands, and most valuable equity listings.

As economic profits grow larger, so do economic losses at the other end of the distribution. The bottom 10 percent of companies destroy as much value as the top 10 percent create, and today’s bottom-decile companies have 1.5 times more economic loss, on average, than their counterparts of 20 years ago (Exhibit 1). That means for every company that creates economic value, there is another company that destroys economic value. Yet these value-destroying companies continue to survive, holding on to their resources for increasingly longer durations and continuing to attract capital. A growing number are turning into “zombie” companies (June 2017: https://www.oecd-ilibrary.org/economics/the-walking-dead_180d80ad-en), unable to generate enough cash flow even to sustain interest payments on their debts. The impact of these economic losses goes beyond these companies’ investors, managers, and workers: it drives down the returns for healthy companies that compete for the same resources or profits.

For the vast majority of the world’s largest companies, those making up the middle 60 percent of the power curve, economic profit is hard to retain. They record near-zero economic profit, on average. For these companies, market forces are powerful constraints on creating and retaining value, forcing them to compete away whatever advantages they may have in the marketplace. For the average company, the skew of economic profit means that it becomes relatively more painful to be in the middle of the pack, and strategy becomes even more relevant.

The bottom 10 percent of companies destroy as much value as the top 10 percent create, and today’s bottom-decile companies have 1.5 times more economic loss, on average, than their counterparts of 20 years ago (Exhibit 1). That means for every company that creates economic value, there is another company that destroys economic value. Yet these value-destroying companies continue to survive, holding on to their resources for increasingly longer durations and continuing to attract capital. A growing number are turning into “zombie” companies (June 2017: https://www.oecd-ilibrary.org/economics/the-walking-dead_180d80ad-en), unable to generate enough cash flow even to sustain interest payments on their debts. The impact of these economic losses goes beyond these companies’ investors, managers, and workers: it drives down the returns for healthy companies that compete for the same resources or profits.

Unraveling the asymmetry of Mona Lisa smile?

Unraveling the asymmetry of Mona Lisa smile. Luca Marsili, Lucia Ricciardi, Matteo Bologna. Cortex, April 3 2019, https://doi.org/10.1016/j.cortex.2019.03.020

Abstract: The Mona Lisa portrait, by Leonardo da Vinci, is one of the most famous paintings in the world. Over the years, there have been a number of debated topics on the painting, including the valence of the emotion expressed on her face. Nevertheless, the most recent interpretations agree that Mona Lisa expression is happiness. The smile asymmetry of Mona Lisa is another remarkable feature of the painting. We here asked forty-two healthy raters to judge which of the six basic emotions (or neutral expression) was expressed by the chimeric images of the left or right lower hemi face. We collected chosen responses, confidence levels and reaction times. Our results indicate that happiness is expressed only on the left side. According to some influent theories of emotion neuropsychology, we here interpreted the Mona Lisa asymmetric smile as a non-genuine smile, also thought to occur when the subject lies. Given that Leonardo was a great observer of human physiognomy we speculate on the intriguing possibility that Leonardo already knew the true meaning of asymmetric smile. Thus, Mona Lisa asymmetric smile could represent a stratagem Leonardo deliberately used to hold cryptic and enigmatic messages. Although the Mona Lisa smile continues to attract the attention of its observers, the true message it conveys remains elusive and many unsolved mysteries remain to be elucidated, perhaps via the knowledge of emotion neuropsychology.

Majority of hormesis research has not been privately funded: The public sector (federal & state governmental agencies) exclusively contributed to 78% of the reported research funding

Funding trends in hormetic research. MA Cottrell, WA Mills2 and EJ Calabrese. Human and Experimental Toxicology, Apr 1 2019. https://doi.org/10.1177/0960327119836224

Abstract: The topic of hormesis research funding has been a focus of deliberation within the scientific community for several decades. A common assumption/belief is that most hormesis research is funded by the private sector. With this assumption may emerge questions revolving around potential bias of such research. To provide some clarification to this issue, all hormesis research articles were obtained through online databases for 5-year increments starting with 1995 and ending with 2015 and were subsequently categorized by their funding source. A total of 710 articles were found for those years and 383 of those reported information on funding sources. Reporting funding is not required by law and until more recently was not encouraged or required by funders, research institutions, and/or scientific publishers. The analysis revealed that the assumption that the majority of hormesis research has been privately funded was not supported, with the public sector (i.e. federal and state governmental agencies) exclusively contributing to 78% of the reported research funding. Going forward, funding transparency for scientific research as a whole is essential within the scientific community as it may affect how research may be perceived, accepted, and applied.

Keywords: Hormesis, hormetic, funding sources, bias, risk assessment, dose–response.

A person's abortion views in 1982 led many to switch parties over time; individuals realigned their party affiliation in accordance with their initial abortion views, & their other political, economic and social views followed suit

Party hacks and true believers: The effect of party affiliation on political preferences. Eric D. Gould, Esteban F. Klor. Journal of Comparative Economics, Mar 25 2019. https://doi.org/10.1016/j.jce.2019.03.004

Highlights
•    We study the effect of party affiliation on an individual's political views.
•    We show that a person's abortion views in 1982 led many to switch parties over time as parties diverged in their stances on this issue.
•    As individuals realigned their party affiliation in accordance with their initial abortion views, their other political, economic and social views followed suit.

Abstract: This paper examines the effect of party affiliation on an individual's political views. To do this, we exploit the party realignment that occurred in the U.S. due to abortion becoming a more prominent and highly partisan issue over time. We show that abortion was not a highly partisan issue in 1982, but a person's abortion views in 1982 led many to switch parties over time as the two main parties diverged in their stances on this issue. We find that voting for a given political party in 1996, due to the individual's initial views on abortion in 1982, has a substantial effect on a person's political, social, and economic attitudes in 1997. These findings are stronger for highly partisan political issues, and are robust to controlling for a host of personal views and characteristics in 1982 and 1997. As individuals realigned their party affiliation in accordance with their initial abortion views, their other political views followed suit.

The threat of punishment lowered the average quality & quantity of information processed, compared with the prospect of reward or no performance incentive; also induced less cautious decision making by lowering decision thresholds

Information Processing Under Reward Versus Under Punishment. Timothy Ballard et al. Psychological Science, April 2, 2019. https://doi.org/10.1177/0956797619835462

Abstract: Much is known about the effects of reward and punishment on behavior, yet little research has considered how these incentives influence the information-processing dynamics that underlie decision making. We fitted the linear ballistic accumulator to data from a perceptual-judgment task to examine the impacts of reward- and punishment-based incentives on three distinct components of information processing: the quality of the information processed, the quantity of that information, and the decision threshold. The threat of punishment lowered the average quality and quantity of information processed, compared with the prospect of reward or no performance incentive at all. The threat of punishment also induced less cautious decision making by lowering people’s decision thresholds relative to the prospect of reward. These findings suggest that information-processing dynamics are determined not only by objective properties of the decision environment but also by the higher order goals of the system.

Keywords: information processing, reward, punishment, decision making, computational modeling, open data

Sugar Rush or Sugar Crash? A Meta-Analysis of Carbohydrate Effects on Mood: Do not have a beneficial effect on any aspect of mood, lowers alertness within 60 minutes after consumption, increase fatigue within 30 min post-consumption

Sugar Rush or Sugar Crash? A Meta-Analysis of Carbohydrate Effects on Mood. Konstantinos Mantantzis, Friederike Schlaghecken, Sandra I.Sünram-Lea, Elizabeth A.Maylor. Neuroscience & Biobehavioral Reviews, Apr 3 2019. https://doi.org/10.1016/j.neubiorev.2019.03.016

Highlights
•    Carbohydrates do not have a beneficial effect on any aspect of mood.
•    Carbohydrate consumption lowers alertness within 60 minutes after consumption.
•    Carbohydrates increase fatigue within 30 minutes post-consumption.

Abstract: The effect of carbohydrate (CHO) consumption on mood is much debated, with researchers reporting both mood improvements and decrements following CHO ingestion. As global consumption of sugar-sweetened products has sharply increased in recent years, examining the validity of claims of an association between CHOs and mood is of high importance. We conducted a systematic review and meta-analysis to evaluate the relationship between acute CHO ingestion and mood. We examined the time-course of CHO-mood interactions and considered the role of moderator variables potentially affecting the CHO-mood relationship. Analysis of 176 effect sizes (31 studies, 1259 participants) revealed no positive effect of CHOs on any aspect of mood at any time-point following their consumption. However, CHO administration was associated with higher levels of fatigue and less alertness compared with placebo within the first hour post-ingestion. These findings challenge the idea that CHOs can improve mood, and might be used to increase the public's awareness that the ‘sugar rush’ is a myth, inform health policies to decrease sugar consumption, and promote healthier alternatives.

Is Locker Room Talk Really Just Talk? An Analysis of Normative Sexual Talk and Behavior: Women were more likely than men to rate nonconsensual language as more normal

Is Locker Room Talk Really Just Talk? An Analysis of Normative Sexual Talk and Behavior. Stephanie Simeone & Elizabeth L. Jeglic.Deviant Behavior, Apr 1 2019. https://doi.org/10.1080/01639625.2019.1597319

ABSTRACT: Current sexual violence prevention initiatives have focused on addressing and changing societal norms that are supportive of sexual assault. One area of focus has been the way in which people describe women and sexual acts as it has been suggested that people perceive sex differently. The present study investigated what people consider normative sexual language and behavior and what people consider language and behavior indicative of sexual assault. Participants were given a questionnaire to gather their opinions about sexually assaultive language, their feelings about sex talk, and their experiences with sexual assault. Results indicated that women were more likely than men to rate nonconsensual language as more normal, and that normative ratings of assault language was not related to perpetration of sexual assault. These findings will be discussed as they pertain to sexual violence prevention initiatives.

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During the United States (U.S.) presidential election campaign in the fall of 2016, an audiotapedprivate conversation with then presidential candidate Donald J. Trump emerged in which he stated“You know I’m automatically attracted to beautiful–I just start kissing them. It’s like a magnet. Justkiss. I don’t even wait. And then when you’re a star they let you do it. You can do anything...Grab them by the pussy. You can do anything.”These comments ignited a fierce debate, with some individuals, including the presidential candidate himself, referring to his language as harmless“locker room banter,”while others stated that this language was indicative of sexual assault. From a legal perspective, the behaviors described in the candidate’s statement (kissing and grabbing the genital area of a woman without consent) are behaviors that would be considered illegal and if acted upon would result in charges of sexual assault (Cal. Penal Code §261;N.Y. Penal Law §130.05;Tex.Penal Code Ann. § 22.011). However many argued that this type of talk is normative and harmless and that it is common for men to speak like this when in the company of other men. Indeed, shortly after the recording was released, political conservative Ann Coulter commented that Trump’s statements were“not intended to be taken seriously,”and that his message was merely that“women like to sleep with celebrities”(Coulter2016). Similarly, Fox News personality SeanH annity publicly defended Trump, saying that the incident was merely “words” and not“actions. ”Whether this type of language is normal is an empirical question. What we do know is that sexual norms continue to evolve. For example, compared to previous decades, people now have a higher number of sexual partners and have more socially liberal views of sexual behavior (Twenge, Sherman, and Wells2015). However, research suggests that women are largely uncomfortable talking about sex (Montemurro, Bartasavich, and Wintermute2015), while men often engage in conversations about sex among other male peers (Knight et al.2012). In talking about sex, men often discuss their partners and the type of sexual behaviors they engage in (Knight et al.2012). Discussion about sex serves as a platform to demonstrate one’s masculinity(Pascoe2007). If they talk about sex at all, women have discussions about sex in private withclose friends or family members. For women, the focus of sex talk is less about sharing their experiences, but instead on gaining support and validation (Montemurro, Bartasavich, and Wintermute2015).Changes in behavior are generally accompanied by changes in the way people perceive and discuss sex acts. While society has become more sexually lenient in general, there has been an increased awareness of sexual assault and harassment. During a performance at the 2016 Oscars, musical artist Lady Gaga was joined on stage by survivors of sexual assault as she sang a song written about college sexual assault. Indeed, many universities now provide mandatory sexual assault prevention programs in an effort to bring awareness to this issue and limit the incidence of future sexual assaults (Vladutiu, Martin, and Macy2011). Further, many sexual violence prevention programs now target language that is supportive of sexual violence or that denigrates women, as itis believed that this type of discourse fosters a culture that enables sexual violence to occur (DeGueet al.2014).Sexual assault is a pervasive occurrence in our culture.One in five (18.3%) women report experiencing rape, and 13% of women report that they have experienced sexual coercion (Center for Disease Control and Prevention2012). The negative long-term consequences of sexual assault are well documented and include depression, anxiety, posttraumatic stress, substance abuse, and suicidality (Kubany et al.1995;Resick1993), thus understanding the causes of sexual violence is imperative to inform prevention and intervention efforts. Attitudes and behaviors that are tolerant or supportive of male violence toward women influence responses to victimization,making it less likely that women will report incidences of sexual violence (Flood and Pease2009). According to the Social Norms Theory, people tend to act in accordance with how they perceive their peers think or behave (Fabiano et al.2003). In the context of sexual assault, men may endorse sexually aggressive behaviors and attitudes because they believe that other men also support these beliefs; however, evidence suggests that men tend to overestimate the sexual aggression of other men (Loh et al.2005). A study investigating social norms of coercive sexual behavior found that students were more likely to report acceptance of rape myths and report that they would engage in behaviors that would constitute rape after learning that their peers supported rape myths (Bohner, Siebler, and Schmelcher2006). Generally, men more frequently endorse rape myths (Burt1980;SuarezandGadalla2010), while women are less accepting(Caron and Carter1997). However, research suggests that although men illustrate higher levelsof rape myth acceptance, women also subscribe to rape myths (Allen et al.1995)–although it isunclear how women’s acceptance translates into sexual assault perpetration. 

Attitudes toward women 

Sexist attitudes toward women are often found in association with sexual aggression (Burt1980). Feminist theories outline how sexual assault is a byproduct of men’s power and control over women(McPhail2016). In a cross-cultural study of tribal societies, Sanday (1981) found that societies with higher incidences of rape were characterized by interpersonal violence and male dominance over women, while societies with lower incidences of rape were related to respect for women, minimal interpersonal violence, and“sexual equality.”In this way,“sexual assault is not simply an individual incident but a wide-ranging constellation of behaviors, attitudes, beliefs, and talk that work to produce and reproduce gendered dominance in everyday interaction”(Pascoe and Hollander2016: 69).Although stereotypical images of sexual assault focus on blatant forms of coercive sex, sexual assault may be more nuanced. It appears that for the general public, the line between sexual assault and normal sexual behavior might be blurred, which has led to an increased acceptance of assaul tive behavior and language. Indeed, in one study of situational factors related to victimization, Koss (1985) found that 26 out of 62 “highly sexually victimized women” (e.g., the incident met the legal definition of rape) did not acknowledge that they had experienced a sexual assault. Specifically,women who were assaulted by people they had previously been intimate with or by someone they knew were less likely to categorize the assault as rape. Given the wide variety of behavior that constitutes sexual assault (e.g., lack of consent due to substance intoxication; forcible rape) and the social environment surrounding casual sex, people may not necessarily categorize their experience asassaultive.The current study aims to extend the literature on the relationship between perception of normative and sexually assaultive behavior and language and the perpetration and experience of sexual assault. Although previous research has suggested a relationship between attitudes and behavior, many rely on college samples (Tharp et al.2013). Because research suggests that attitudes supporting sexual assault predict sexual aggression, it is hypothesized that an increased endorsement of sexual assault behaviors and language will be related to higher levels of sexual assault perpetration.It is also hypothesized that men are more likely to endorse behaviors and talk indicative of sexual assault.

Discussion 
The present study examined the relationship between perception of normative and sexually assaul-tive language and behavior. Overall, three major findings emerged. First, people are more likely torate consensual statements as normative than nonconsensual statements. Second,the findings suggestthat compared to men, women were more likely to rate both consensual and nonconsensual sexualstatements as more normal. Lastly, normative perception of sexual assault language was not relatedto engagement in sexual assault behavior.Most participants reported positive emotions when listening to stories of friends’consensualsexual experiences and reported negative emotions when listening to stories of nonconsensual sexualexperiences. Previous research has found that men’s attitudes toward rape are related to their peer’sattitudes (Bohner, Siebler, and Schmelcher2006), yet the fact that participants reported negativefeelings toward nonconsensual situations suggests that they disapprove of their friend’s behavior.This is consistent with findings that suggest that men underestimate the level of discomfort of othermen in regard to sexist behavior (Kilmartin et al.1999). In social contexts, men may not truthfullyspeak their minds for fear of ridicule from their peers. Although the current study only assessedemotions related to different types of sexual language and behavior, future research should explorehow men address the topic of sexual assault within social contexts.While the overall sample found the consensual statements as more normative than the non-consensual statements, contrary to our hypothesis, women were more likely than men to rate bothtypes of statements as more normative. These findings are also not in line with previous research,which has indicated that men are more likely to have attitudes that promote sexual assault (Suarezand Gadalla2010). Sex talk is generally viewed as masculine and therefore unbefitting discourse forwomen (Nylund2007). Traditional gender roles suggest differences in the way that women and mentalk about sex (Montemurro, Bartasavich, and Wintermute2015). However, the fact that women donot necessarily engage in sex talk in public does not mean that they do not hold certain viewsregarding sex. Given the change of sexual norms promoting casual sexual relationships, women maybe unsure whether certain talk or behavior constitutes assault. Similarly, women may be more likelyto identify sexual assault language as normal because they have difficulty identifying certain situa-tions as sexual assaults (Koss1985). On the other hand, it is possible that women have becomedesensitized to the crude nature of sexual assault language and now associate “normal” with “typical.” Future research may inquire whether women consider certain statements and situationsas sexual assault.Given that all of the statements were from a male's perspective, women were speculating as towhether or not each statement was normal within the context of men's conversations. Theoretically, if “locker room” banter is solely in the presence of other men, then women would not be privy towhat actually occurs during these conversations. Men, on the other hand, may make judgments based off of their own experience as to whether these types of statements are normal in conversation.However, in contrast to the hypothesis, neither the perception of consensual language nor non-consensual language were related to sexual assault behavior. This is contrary to previous literature which has suggested a relationship between normative beliefs and rape proclivity (Strain, Hockett,and Saucier2015). The lack of relationship in the current study may have been due to the lowincidence of sexual assault behavior reported. Alternatively, perhaps sexual assault behavior occursindependently of perceptions of normative behavior. Studies have found that variables such asimpulsivity, anger, and anxiety play a role in the perpetration of sexual aggression (Lyn andBurton2005; Mouilso, Calhoun, and Rosenbloom2013). Future research should consider personalityvariables that may influence perceptions and behaviors.Although the data was collected during a polarizing political election, political affiliation did not playa significant role in perception of normative language and behavior. Because previous research suggeststhat political conservatism is related to negative attitudes toward sex offenders more generally (Pickett,Mancini, and Mears2013;RosselliandJeglic2017), one may postulate that conservative individuals maybe more likely to find nonconsensual language and behaviors as non-normative. However, the currentstudy did not find such differences. Though not the main focus of the current study, future researchshould examine the role of political affiliation on perceptions and behavior related to sexual assault. 

Limitations 
This study is not without its limitations. First, this study relied on self-report. This could lead to under-reportingof the perpetration of sexual assault behavior, and to ratings of sexual assault language. Secondly,some of the participants were recruited via snowballsampling, which could also lead to underreporting.Although participants were assured that their responses were confidential and their names were notassociated with their responses, it is possible that participants did not want to be completely honest withtheiranswersforfearoftheirpeerslearningtheirresponses. Given the voluntary participation of thesample recruited via reddit, it is possible that participants may have held more extreme opinions. However,previous research has used reddit to recruittheir sample (Kaylor, Jeglic, and Collins2016)andstudieshavefound that results from in-person tests were no different than the results from participants recruitedonline. In fact, online recruitment provided a more ethnically diverse sample thanthatofacollegesample(Casler, Bickel, and Hackett2013). The average age of the sample was relatively young (M=26.5years),soit is possible that the perceptions and behaviors reported are not indicative of society more generally.However, as this is the peak time for sexual assault victimization (i.e., ages 12–34 are at the highest risk;Greenfield1997), it is important to understand the thoughts and behaviors of this age group. Future research should try to recruit a wider range of age to see if these results are replicated with older adults. 

Conclusion
Despite these limitations, the current study indicates that people are more likely to think that consensual statements are more normal than nonconsensual statements. Specifically, females are more likely than males to rate statements and behaviors of sexual assault as normative. That most men did not perceive nonconsensual statements as normal suggests that“locker room”talk may not be as prevalent as recent events make it seem. The current study adds to the understanding of social norms as they pertain tos exual language and behavior. As intervention programs continue to focus on changing social norms that perpetuate sexual violence, the current findings suggest that many so-called normative beliefs may not beas widely held as people perceive. However, the fact that a small portion of people did believenonconsensual language was normal suggests that there is still a need for education about sexual assaultand consensual sexual behavior.

Nationally Representative Sample of Canadians: One-fifth of participants reported prior engagement in an open relationship, and 12% reported open as their ideal relationship type; men voted this three times more than women

Open Relationship Prevalence, Characteristics, and Correlates in a Nationally Representative Sample of Canadian Adults. Nichole Fairbrother, Trevor A. Hart ORCID Icon & Malcolm Fairbrother. The Journal of Sex Research, Apr 1 2019. https://doi.org/10.1080/00224499.2019.1580667

Abstract: Open relationships are those in which individuals agree to participate in sexual and/or emotional and romantic interactions with more than one partner. Accurate estimates of the prevalence of open relationships, based on representative, unbiased samples, are few, and there are none from outside of the United States. We present findings from a nationally representative sample of 2,003 Canadian adults, administered in 2017 via an online questionnaire. Overall, 2.4% of all participants, and 4.0% of those currently in a relationship, reported currently being in an open relationship. One-fifth of participants reported prior engagement in an open relationship, and 12% reported open as their ideal relationship type. Men, compared with women, were more likely to report prior open relationship engagement and to identify open as their ideal relationship type. Younger participants were more likely both to engage in and to prefer open relationships. Relationship satisfaction did not differ significantly between monogamous and open relationships. Having a match between one’s actual relationship type and one’s preferred relationship type was associated with greater relationship satisfaction. Findings suggest that, while currently only a small proportion of the population is in an open relationship, interest in open relationships is higher, particularly among younger adults, and open appears to be a viable and important relationship type.

It is said that children’s sense of fairness emerges at age 8 & is rooted in the aversion to unequal distributions; they add 2 twists: It emerges already at age 3 & only in the context of collaborative activities

Children’s Sense of Fairness as Equal Respect. Jan M. Engelmann, Michael Tomasello. Trends in Cognitive Sciences, Apr 2 2019. https://doi.org/10.1016/j.tics.2019.03.001

Highlights
If humans could survive and thrive entirely on their own, they would not concern themselves with dimensions such as equality, merit, and deservingness. Fairness is a form of cooperation as it enables individuals with conflicting interests to find mutually satisfactory solutions to the demands of interdependent lifeways.

Consistent with this evolutionary perspective, young children show a concern for fairness first inside, but not outside, of collaborative interactions with others in which they view their partners (but not free riders) as equally deserving participants.

In this context, children’s sense of fairness is not mainly about how material ‘stuff’ is distributed, but about the social meaning of the act of distribution. They thus are okay with an unequal distribution if the procedure was a fair one that gave everyone an equal chance. In general, children are concerned that acts of distribution treat everyone with equal respect.

One influential view holds that children’s sense of fairness emerges at age 8 and is rooted in the development of an aversion to unequal resource distributions. Here, we suggest two amendments to this view. First, we argue and present evidence that children’s sense of fairness emerges already at age 3 in (and only in) the context of collaborative activities. This is because, in our theoretical view, collaboration creates a sense of equal respect among partners. Second, we argue and present evidence that children’s judgments about what is fair are essentially judgments about the social meaning of the distributive act; for example, children accept unequal distributions if the procedure gave everyone an equal chance (so-called distributive justice). Children thus respond to unequal (and other) distributions not based on material concerns, but rather based on interpersonal concerns: they want equal respect.

Red China's Foreign Aid in the 1970: 5 per cent of its national budget into foreign aid, maximum of 6.92pct

According to Julia Lovell's Maoism: A Global History

It is undeniable that China since the late 1950s has deployed hard and soft power in its determination to exert influence over Africa.  In the Mao era this translated into enormous aid budgets.  By 1975, China was throwing 'more than' -- in Zhou Enlai's revealingly hazy formulation -- 5 per cent of its national budget into foreign aid; in fact, two years earlier it had reached 6.92 per cent.  Compare this proportion with the 0.7 percent of national income that the much wealthier UK annually reserves for international aid..It thus seems certain that Mao-era china spent a greater proportion of income on foreign aid -- including in Africa -- than did either the US (around 1.5 per cent of the federal budget in 1977) or the USSR (0.9 per cent of GNP in 1976).

Comparing strategies for decreasing anxiety and increasing subjective well-being: downward social comparison, loving-kindness contemplations, and interconnectedness contemplation

Caring for Others Cares for the Self: An Experimental Test of Brief Downward Social Comparison, Loving-Kindness, and Interconnectedness Contemplations. Douglas A. Gentile, Dawn M. Sweet, Lanmiao He. Journal of Happiness Studies, Mar 21 2019. https://link.springer.com/article/10.1007%2Fs10902-019-00100-2

Abstract: Several strategies for decreasing anxiety and increasing subjective well-being have been tested and found to be useful, such as downward social comparison, loving-kindness contemplations, and interconnectedness contemplations. These, however, have not often been directly compared. Emerging adults contemplated one technique for 12 min while walking around a building. Those who wished others well (loving-kindness) had lower anxiety, greater happiness, greater empathy, and higher feelings of caring and connectedness than those in a control condition. The Interconnectedness condition resulted only in beneficial effects on social connection. Although social comparison theory suggests that downward social comparison should improve mood, this study found that it had no beneficial effects relative to the control condition and was significantly worse than the loving-kindness condition. This brief loving-kindness contemplation worked equally well across several measured individual differences, and is a simple intervention that can be used to reduce anxiety, increase happiness, empathy, and feelings of social connection.

Keywords: Happiness Well-being Social comparison Anxiety Intervention

Oral sex is associated with reduced incidence of recurrent miscarriage; maybe it induces maternal tolerance towards paternal antigens of the fetus

Oral sex is associated with reduced incidence of recurrent miscarriage. T. Meuleman et al. Journal of Reproductive Immunology, Mar 27 2019. https://doi.org/10.1016/j.jri.2019.03.005

Highlights
•    At population level, women with unexplained recurrent miscarriage had less oral sex
•    Oral sex seems to influence pregnancy outcome in a proportion of the women
•    Oral sex might induce maternal tolerance towards paternal antigens of the fetus

Abstract

A possible way of immunomodulation of the maternal immune system before pregnancy would be exposure to paternal antigens via seminal fluid to oral mucosa. We hypothesized that women with recurrent miscarriage have had less oral sex compared to women with uneventful pregnancy.

In a matched case control study, 97 women with at least three unexplained consecutive miscarriages prior to the 20th week of gestation with the same partner were included. Cases were younger than 36 years at time of the third miscarriage. The control group included 137 matched women with an uneventful pregnancy. The association between oral sex and recurrent miscarriage was assessed with conditional logistic regression, odds ratios (ORs) were estimated. Missing data were imputed using Imputation by Chained Equations.

In the matched analysis, 41 out of 72 women with recurrent miscarriage had have oral sex, whereas 70 out of 96 matched controls answered positive to this question (56.9% vs. 72.9%, OR 0.50 95%CI 0.25-0.97, p = 0.04). After imputation of missing exposure data (51.7%), the association became weaker (OR 0.67, 95%CI 0.36-1.24, p = 0.21).

In conclusion, this study suggests a possible protective role of oral sex in the occurrence of recurrent miscarriage in a proportion of the cases. Future studies in women with recurrent miscarriage explained by immune abnormalities should reveal whether oral exposure to seminal plasma indeed modifies the maternal immune system, resulting in more live births.

Nonsense Words Elicit Meaningful Drawings

Davis, Charles P., Hannah M. Morrow, and Gary Lupyan. 2019. “What Does a Horgous Look Like? Nonsense Words Elicit Meaningful Drawings.” PsyArXiv. April 2. doi:10.31234/osf.io/uve7d

Abstract: To what extent do people attribute meanings to “nonsense” words? How pervasive is such attribution? We used a set of seemingly meaningless words to elicit drawings of made-up creatures. Separate groups of participants rated the nonsense words and the drawings on several semantic dimensions, and were asked to choose a name for the drawn creatures. Nonsense words elicited a high level of consistency in the produced drawings. Meaning attributions made to nonsense words corresponded with meaning attributions made by separate people to drawings that were inspired by the name. Naïve participants were able to recover the name that inspired the drawing with greater-than-chance accuracy. These results suggest that people make liberal and consistent use of non-arbitrary relationships between forms and meanings.

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1. Introduction
Imagine a group of artists illustrating children’s books about made-up creatures with
names like “horgous” and “keex.” Will different artists create similar drawings for creatures that
have similar names? Will readers who encounter the drawing of a “horgous” expect this creature
to be named “horgous”? We show here that drawings elicited by certain “nonsense” words relate
in a systematic way to the form of these words. This relationship between nonce words and the
meanings they express is bidirectional: Certain word-forms lead people to infuse their drawings
with certain properties. Other people, looking at the drawings, match them back to the original
names at higher than chance levels.
The idea that certain words fit some meanings better than others has its roots in the
ancient world (Plato, 1999) but was all but excised by the ascendance of structural linguistics (de
Saussure, 1959) and its focus on the sharp boundary between the signifier and the signified. The
conventional wisdom has been that with the exception of words that directly imitate sounds, the
relationship between word-forms and meanings is arbitrary: “There is no reason for you to call a
dog ‘dog’ rather than ‘cat’ except for the fact that everyone else is doing it” (Pinker & Bloom,
1990). In the last several decades, iconicity—a resemblance between form and meaning—is
being recognized as one of the basic design features of natural language in both the signed and
spoken modalities (Perniss & Vigliocco, 2014, Dingemanse et al., 2015, Monaghan et al., 2014,
cf. Hockett, 1978). The idea that the auditory modality can convey meanings in an iconic way,
beyond simple imitation of sounds, is at first counterintuitive. For example, Hockett argued that
the relationships between spoken words and meanings is arbitrary because “When a
representation of some four-dimensional hunk of life has to be compressed into the single
dimension of speech, most iconicity is necessarily squeezed out” (Hockett, 1978 p. 274). We now know that speech is a richly multi-dimensional signal, and spoken languages make ample
use of this dimensionality to convey meanings in an iconic way. For example, consonant voicing
(/b/ vs. /p/, /d/ vs. /t/) is used to signal differences in mass: Siwu: tsratsra, ‘a light person walking
quickly’ vs. dzradzra, ‘a heavy person walking quickly’. Vowel quality is used to signal size:
Ewe: lɛgɛɛ : logoo, ‘slim : fat’. Vowel lengthening is used to signal duration and intensity:
Japanese:  piQ : piiQ, ‘tear short : long strip of cloth. And reduplication is used to signal
repetition: Tamil: curuk-nu : curukcuruk-nu, ‘a sharp prick : many sharp pricks’ (Dingemanse et
al., 2015; see also Perniss, Thompson, & Vigliocco, 2010). Although these specific form-to
meaning relationships are not found in all languages, examining statistical relationships between
forms and meanings across languages does reveal some more universal relationships (e.g., Blasi
et al., 2016).
What makes such examples especially interesting is that people appear to be extremely
sensitive to form–meaning relationships even when the specific relationship is not present in
their language. For example, monolingual English 3-year-olds are sensitive to Japanese form–
meaning relationships when learning novel words (Kantartzis, Imai, & Kita, 2011). In English,
there does not appear to be a systematic relationship between object size and vowel pitch. Yet
anyone who has read to a small child knows that there is something exceedingly natural about
saying “elephant” in a lower pitch than “mouse,” or using a higher pitch to refer to the baby
elephant compared to the mommy elephant.1 Similarly, in English, smaller objects do not as a
rule have shorter names than larger objects (indeed, the relative shortness of “whale” compared
to “micro-organism” is used by Hockett to illustrate the principle of arbitrariness; Hockett,
1978). And yet, when asked to select a nonce-word for a small object such as a pin, people not
only prefer shorter words, but justify their choices with statements like “a small item’s name
should be small” and “pins are sharp and simple, as is this word” (Lupyan & Casasanto, 2012).
Hearing adults with no sign language experience can also use iconicity to determine the
approximate meaning of a word (i.e., a word’s telic content—whether it refers to an event with a
finite end point or not) across a number of signed languages, even when the exact meaning of the
sign is not a response option. People are more likely to choose “believe” than “forget” when
presented with a sign for “think” (Strickland et al., 2015), perhaps because telic signs make event
boundaries salient, while atelic signs are characterized by repetition and a lack of such
boundaries.
In an early systematic investigation of what he called “phonetic symbolism,” Sapir
(1929) recruited over 500 participants of varying ages (mostly, but not exclusively, English
speakers) and presented them with dozens of short nonce words and asked to distinguish them on
size. For example, a participant may be told that “mal” and “mil” both mean table; they then had
to decide which would be a better word for a large table. The chosen answer, overwhelmingly
and largely independent of age and language background, was “mal.”2 Sapir concluded that most
people displayed a common “feeling-significance” toward vocalic and consonantal contrasts in
nonsense words and that it made “surprisingly little difference whether the phonetic contrast was
contained in a [phonotactically] ‘possible’ [i.e., attested in the subject’s language] or …
‘impossible’ context” (p. 228). Sapir did not know where these sound-to-meaning mappings
came from, but speculated that they may arise from people implicitly learning that producing
 certain vowels requires larger mouth cavities. This early speculation was greatly amplified by
Ramachandran and Hubbard’s (2001) replication of Sapir’s phonetic symbolism demonstration
(see also Kohler, 1929; Newman, 1931) giving us the well-known “bouba-kiki” effect wherein
people overwhelmingly match “bouba” to a round shape and “kiki” to an angular one (see also
e.g., Maurer, Pathman, & Mondloch, 2006).
Contemporary investigations of sound symbolism have not settled the question of where
these associations between forms and meanings come from (but see e.g., Imai & Kita, 2014;
Sidhu & Pexman, 2018; Spence, 2011), but they have further demonstrated the varied way in
which iconicity plays a role in language learning and vocal communication. For example, Perry
et al. (2018) showed that more iconic words are learned earlier by children (adjusting for
numerous potential confounds like frequency, concreteness, and communicative need; see also
e.g., Imai, Kita, Nagumo, & Okada, 2008; Maurer et al., 2006; Peña, Mehler, & Nespor, 2011;
for further review, see Imai & Kita, 2014). Such apparent advantages of iconicity go beyond
word-learning. For example, people think that someone named Bob ought to have a round face
while a Mike should have a more angular one (Sidhu & Pexman, 2015). Further, Lupyan and
Casasanto (2015) had people learn to categorize two kinds of “aliens.” One of these contained
aliens that were subtly more round and the other subtly more pointy. When the categories were
labeled with the nonce words “foove” (which people tend to associate with being round and
friendly) and “crelch” (pointy and dangerous), people learned the category distinction itself (not
just the category names) better than when arbitrary or iconically incongruent labels were used.
When tasked with creating novel vocalizations to communicate a range of meanings (e.g., big,
small, high, low, smooth, rough, cook, fire, fruit, and many others), people not only converge on
surprisingly similar vocal forms, but when these vocalizations are played to naïve listeners
(including those from other language backgrounds), they are understood at levels well above
chance (Perlman & Lupyan, 2018).