Browsing by Subject "Mating"
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Item Differential susceptibility to social status(2012-05) Cason, Margaret Julia; Josephs, Robert A.; Beevers, Christopher; Buss, David M.; Martorana, Paul; McGeary, John E.The diathesis-stress model focuses on the interaction between gene polymorphisms and negative environmental conditions (i.e., stressors); however, Belsky and Pluess (2009) recently proposed an alternative to diathesis-stress: the differential susceptibility hypothesis, which states that some individuals may be predisposed to be more adversely affected by negative environments but, also, to benefit more from positive environments. Nevertheless, the differential susceptibly hypothesis has not been rigorous tested. Thus, the purpose of this study was to test the differential susceptibility hypothesis by examining individual differences in men’s testosterone, behavioral, and psychological responses to social status as a function of the serotonin transporter promoter region polymorphism (5-HTTLPR), which was cited by Belsky and Pluess as a potential “plasticity gene” because one variant – the long (l) allele – appears to be associated with lower susceptibility/plasticity and another – the short allele (s) – appears to be associated with higher susceptibility/plasticity. In this study, groups of 3-4 male participants were allowed to socialize before being told that they were part of a larger initiative to create a student-run Honor Committee. They were asked to nominate one person to be the leader and one person to not be on the committee. Then, participants were told privately that everyone voted them to either (1) be the leader or (2) not be on the committee. Salivary hormone samples were collected at baseline and 20 minutes after vote feedback. In addition, after receiving the vote feedback, participants completed a series of dating anxiety and mate preference tasks and were given the option to examine an “actual honor violation” case either alone or as part of the committee. The results support the differential susceptibility hypothesis. In terms of testosterone response, ss individuals showed both greater reactivity and differential responses to vote feedback. Furthermore, the testosterone responses of ss individuals were moderated by basal cortisol, which is associated with approach/avoidance behavior (Kagan et al., 2003; Shoal, Giancola, & Kirillova, 2003). In addition, ss individuals’ decisions to work on the committee or work alone and responses to the mating tasks were dependent upon the vote feedback, whereas l-carriers’ decisions and responses were not.Item Sexual attraction to exploitability(2014-05) Goetz, Cari Debora; Buss, David M.This research explores the relationship between sexual exploitability and sexual attractiveness. Sexual exploitability describes the ease with which a woman could be pressured, deceived, or coerced into sex, or sexually assaulted. Study 1 documented novel cues to sexual exploitability. Moreover, men found women displaying these cues to be attractive as short-term mates, supporting the hypothesis that men’s attraction functions to motivate the pursuit of sexually accessible women. In Study 2, it was determined that women also perceived other women who displayed cues to exploitability as sexually attractive to men. Because displaying exploitability enhances a woman’s sexual attractiveness, women may have co-evolved mate attraction mechanisms designed to capitalize on this feature of male sexual psychology. In Study 3, it was hypothesized that three individual differences would predict which women would be more likely to signal exploitability as a mate attraction tactic: propensity towards short-term mating, relationship status, and self-perceived mate value. Women self-reported their likelihood of using mate attraction tactics involving the intentional display of exploitability cues. Women inclined toward casual sex were more likely to report using such tactics. In Study 4, a separate set of female participants made a hypothetical video dating profile to provide a record of their actual behavior in a mate attraction scenario. Women inclined toward short-term mating and high in the personality characteristic of Openness to Experience were more likely than their female counterparts to display exploitability cues in their videos. These convergent results across studies support the hypothesis that women pursuing short-term mating capitalize on the relationship between exploitability and attractiveness to achieve their mating goals. Results from these studies expand our knowledge of sexual exploitability and mate attraction. Documentation of a comprehensive list of cues to exploitability expands our knowledge of potential predictors of sexual victimization. Identification of individual differences that predict which women may functionally display exploitability cues increases our understanding of which women may be at greater risk for sexual exploitation.