Evolutionary Psychological Science最新文献

Despite the adaptive advantages of social affiliation in humans, the benefits of interpersonal contact are nonetheless bounded. The experience of crowding can emerge from an oversaturation of social affiliation, fostering avoidant behaviors and heightening vigilance toward interpersonal threats. Among these features indicative of threat includes facial structures connoting dark personality traits associated with a proclivity toward exploitative behavior. Despite the potential costs imposed by those exhibiting these features, individuals could nonetheless enjoy coalitional benefits from exploitative humans (i.e., protection). Two studies investigated whether crowding would foster aversion or interest toward facial structures connoting psychopathy and narcissism. Although crowd salience heightened tolerance for psychopathy (Study 1), providing evidence for a bodyguard hypothesis, narcissism was similarly aversive regardless of motivational state (Study 2). We frame results from an evolutionary perspective and provide tentative explanations for discrepant signal values through psychopathy and narcissism that could elicit disparate findings.

The COVID-19 pandemic caught the world by surprise and raised many questions. One of the questions is whether infectious diseases indeed drive fast life history (LH) as the extent research suggests. This paper challenges this assumption and raises a different perspective. We argue that infectious diseases enact either slower or faster LH strategies and the related disease control behavior depending on disease severity. We tested and supported the theorization based on a sample of 662 adult residents drawn from all 32 provinces and administrative regions of mainland China. The findings help to broaden LH perspectives and to better understand unusual social phenomena arising from the COVID-19 pandemic.

The behavioral immune system (BIS) is an evolved psychological mechanism that motivates prophylactic avoidance of disease vectors by eliciting disgust. When felt toward social groups, disgust can dampen empathy and promote dehumanization. Therefore, we investigated whether the BIS facilitates the dehumanization of groups associated with disease by inspiring disgust toward them. An initial content analysis found that Nazi propaganda predominantly dehumanized Jews by portraying them as disease vectors or contaminants. This inspired three correlational studies supporting a Prophylactic Dehumanization Model in which the BIS predicted disgust toward disease-relevant outgroups, and this disgust in turn accounted for the dehumanization of these groups. In a final study, we found this process of prophylactic dehumanization had a downstream effect on increasing anti-immigrant attitudes during the COVID-19 pandemic. However, consistent with the evolutionary logic of a functionally flexible BIS, this effect only occurred when the threat of COVID-19 was salient. The implications of these results for the study of dehumanization and evolutionary theories of xenophobia are discussed.

Supplementary information: The online version contains supplementary material available at 10.1007/s40806-021-00296-8.

Sexual strategies theory indicates women prefer mates who show the ability and willingness to invest in a long-term mate due to asymmetries in obligate parental care of children. Consequently, women's potential mates must show they can provide investment - especially when women are seeking a long-term mate. Investment may be exhibited through financial and social status, and the ability to care for a mate and any resulting offspring. Men who care for children and pets (hereafter "dependents") are perceived as high-quality mates, given that dependents signal an ability to invest; however, no studies have examined how dependents are associated with short-term and long-term mating strategies. Here, online dating profiles were used to test the predictions that an interactive effect between sex and mating strategy will predict displays of dependents, with long-term mating strategy predicting for men but not women. Moreover, this pattern should hold for all dependent types and, due to relative asymmetries in required investment, differences will be strongest regarding displays of children and least in non-canine pets. As expected, men seeking long-term mates displayed dependents more than men seeking short-term mates, but both men and women seeking long-term mates displayed dependents similarly. This pattern was driven mostly by canines. These findings indicate that men adopting a long-term mating strategy display their investment capabilities more compared to those seeking short-term mates, which may be used to signal their mate value.

Sexual coercion-pursuit of sexual activity with a partner who has not provided full consent (Huppin & Malamuth, Sexual Coercion, Hoboken, New Jersey, 2015) is a pervasive problem that carries psychological and financial costs. Although much past research has focused on sexually coercive acts performed by men and directed at women, the current work evaluates the independent and interactive roles of participant gender, desired partner gender, and sexual orientation in predicting individuals' views toward sexual coercion, a psychological outcome linked with coercive sexual behavior (e.g., Zinzow & Thompson in Archives of Sexual Behavior, 44:213-222, 2015). To this end, 1021 cisgender men and women (M _age = 26.46 years) who self-identified as heterosexual, gay/lesbian, or bisexual rated the acceptability of sexually coercive behaviors performed by individuals of their gender. Consistent with past behavioral research, men rated these acts to be more acceptable when performed by same-gender others than did women. Extending past research, this gender difference was observed across variation in desired partner genders and sexual orientations. Further, an attraction to women predicted higher acceptability ratings among men but not among women. Finally, identification as heterosexual (as compared to gay/lesbian or bisexual) predicted more favorable views toward these behaviors across participant gender. Taken together, these findings suggest that men who are attracted to women (specifically) may be most likely to view coercive behaviors as acceptable, and thus may be most likely to utilize them, when pursuing sexual activity.

Supplementary information: The online version contains supplementary material available at 10.1007/s40806-022-00337-w.