The evolution of daily food sharing: A Bayesian phylogenetic analysis
Publication date: Available online 5 April 2019Source: Evolution and Human BehaviorAuthor(s): Erik J. Ringen, Pavel Duda, Adrian V. JaeggiAbstractSome human subsistence economies are characterized by extensive daily food sharing networks, which may buffer the risk of shortfalls and facilitate cooperative production and divisions of labor among households. Comparative studies of human food sharing can assess the generalizability of this theory across time, space, and diverse lifeways. Here we test several predictions about daily sharing norms–which presumably reflect realized cooperative behavior–in a globally represent...
Source: Evolution and Human Behavior - April 6, 2019 Category: Psychiatry & Psychology Source Type: research
Do post-menopausal women provide more care to their kin?: evidence of grandparental caregiving from two large-scale national surveys
Publication date: Available online 4 April 2019Source: Evolution and Human BehaviorAuthor(s): Marlise K. Hofer, Hanne K. Collins, Gita D. Mishra, Mark SchallerAbstractDrawing 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 stud...
Source: Evolution and Human Behavior - April 5, 2019 Category: Psychiatry & Psychology Source Type: research
The primacy of trust within romantic relationships: Evidence from conjoint analysis of HEXACO-derived personality profiles
Publication date: Available online 4 April 2019Source: Evolution and Human BehaviorAuthor(s): Justin K. Mogilski, Jennifer Vrabel, Virginia E. Mitchell, Lisa L.M. WellingAbstractMate preference research often focuses on traits that indicate a romantic partner's personal worth (e.g., their physical attractiveness, resource potential) rather than their tendency to leverage that worth for mutual vs. zero-sum benefit (i.e., their trustworthiness). No one has assessed the contribution of trustworthiness to perceived mate value relative to other personality dimensions. Here we examined the desirability of a partner's trustworthi...
Source: Evolution and Human Behavior - April 5, 2019 Category: Psychiatry & Psychology Source Type: research
Social contact and hormonal changes predict post-conflict cooperation between friends
Publication date: Available online 29 March 2019Source: Evolution and Human BehaviorAuthor(s): Joyce F. Benenson, Lindsay J. Hillyer, Maxwell M. White, Sera Kantor, Melissa Emery Thompson, Henry Markovits, Richard W. WranghamAbstractLong-term cooperation between individuals necessitates repairing damage arising from inevitable competing interests. How two members of a valuable relationship switch from competing to cooperating constitutes an important problem for any social species. Observations of non-human animals suggest that affiliative contact immediately following a contest facilitates continued cooperation. Behaviora...
Source: Evolution and Human Behavior - March 31, 2019 Category: Psychiatry & Psychology Source Type: research
Editorial Board
Publication date: May 2019Source: Evolution and Human Behavior, Volume 40, Issue 3Author(s): (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - March 28, 2019 Category: Psychiatry & Psychology Source Type: research
Do ‘watching eyes’ influence antisocial behavior? A systematic review & meta-analysis
Publication date: Available online 25 February 2019Source: Evolution and Human BehaviorAuthor(s): Keith Dear, Kevin Dutton, Elaine FoxAbstractEye cues have been shown to stimulate rapid, reflexive, unconscious processing and in many experimental settings to cue increased prosocial and decreased antisocial behaviour. Eye cues are being widely applied in public policy to reduce crime and antisocial behaviour. Recently, failed replication attempts and two meta-analyses examining the eye cue effect on generosity have raised doubts regarding earlier findings. Much of the wider evidence on eye cues has still not been systematica...
Source: Evolution and Human Behavior - February 26, 2019 Category: Psychiatry & Psychology Source Type: research
Hormonal predictors of women's sexual motivation
Publication date: Available online 18 February 2019Source: Evolution and Human BehaviorAuthor(s): Talia N. Shirazi, Heather Self, Khytam Dawood, Kevin A. Rosenfield, Lars Penke, Justin M. Carré, Triana Ortiz, David A. PutsAbstractWomen's mating psychology may have evolved to track reproductive conditions, including conception risk, across and between ovulatory cycles. Alternatively, within-woman correlations between mating psychology and ovarian hormones may be byproducts of between-women relationships. Here, we examined associations between steroid hormones and two facets of sexual psychology with putatively different ad...
Source: Evolution and Human Behavior - February 19, 2019 Category: Psychiatry & Psychology Source Type: research
Are attractive female voices really best characterized by feminine fundamental and formant frequencies?
Publication date: Available online 10 February 2019Source: Evolution and Human BehaviorAuthor(s): Christoph Schild, David R. Feinberg, David A. Puts, Julia Jünger, Vanessa Fasolt, Iris Holzleitner, Kieran O'Shea, Rebecca Lai, Ruben Arslan, Amanda Hahn, Rodrigo A. Cárdenas, Lisa M. DeBruine, Benedict C. JonesAbstractResearch into the characteristics of attractive women's voices has focused almost exclusively on associations with fundamental or formant frequencies. A recent study of a small sample of voices used a bottom-up approach to identify acoustic characteristics associated with women's vocal attractiveness, finding ...
Source: Evolution and Human Behavior - February 11, 2019 Category: Psychiatry & Psychology Source Type: research
Editorial Board
Publication date: March 2019Source: Evolution and Human Behavior, Volume 40, Issue 2Author(s): (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - February 1, 2019 Category: Psychiatry & Psychology Source Type: research
Investigating the association between mating-relevant self-concepts and mate preferences through a data-driven analysis of online personal descriptions
Publication date: Available online 23 January 2019Source: Evolution and Human BehaviorAuthor(s): Anthony J. Lee, Benedict C. Jones, Lisa M. DeBruineAbstractResearch on mate preference have often taken a theory-driven approach; however, such an approach can constrain the range of possible predictions. As a result, the research community may inadvertently neglect traits that are potentially important for human mate choice if current theoretical models simply do not identify them. Here, we address this limitation by using a data-driven approach to investigate mating-relevant self-concepts (i.e., what individuals believe to be...
Source: Evolution and Human Behavior - January 24, 2019 Category: Psychiatry & Psychology Source Type: research
Alloparenting and religious fertility: A test of the religious alloparenting hypothesis
Publication date: Available online 15 January 2019Source: Evolution and Human BehaviorAuthor(s): John H. Shaver, Chris G. Sibley, Richard Sosis, Deane Galbraith, Joseph BulbuliaAbstractLife history theory anticipates that organisms trade offspring quantity for offspring quality. In modern human societies this tradeoff is particularly acute because of increased returns on investments in embodied capital. Religious people, however, despite having more children than their secular counterparts, do not appear to suffer lower quality offspring. To explain this apparent paradox of religious fertility, we propose a religious allop...
Source: Evolution and Human Behavior - January 15, 2019 Category: Psychiatry & Psychology Source Type: research
Utilizing simple cues to informational dependency
Publication date: Available online 8 January 2019Source: Evolution and Human BehaviorAuthor(s): Hugo Mercier, Helena MitonAbstractStudies have shown that participants can adequately take into account several cues regarding the weight they should grant majority opinions, such as the absolute and relative size of the majority. However, participants do not seem to consistently take into account cues about whether the members of the majority have formed their opinions independently of each other. Using an evolutionary framework, we suggest that these conflicting results can be explained by distinguishing evolutionarily valid c...
Source: Evolution and Human Behavior - January 9, 2019 Category: Psychiatry & Psychology Source Type: research
An integrative study of facultative personality calibration
Publication date: Available online 7 January 2019Source: Evolution and Human BehaviorAuthor(s): Christoph J. von Borell, Tobias L. Kordsmeyer, Tanja M. Gerlach, Lars PenkeAbstractThe theory of facultative calibration, which explains personality differences as responses to variation in other phenotypic traits of individuals, received mixed results throughout the last years. Whereas there is strong evidence that individual differences in human behavior are correlated with the self-perception of other traits, it still needs to be questioned whether they are also adjusted to objective differences in body condition (i.e. formid...
Source: Evolution and Human Behavior - January 7, 2019 Category: Psychiatry & Psychology Source Type: research
Who punishes promiscuous women? Both women and men are prejudiced towards sexually-accessible women, but only women inflict costly punishment
Publication date: Available online 22 December 2018Source: Evolution and Human BehaviorAuthor(s): Naomi K. Muggleton, Sarah R. Tarran, Corey L. FincherAbstractAcross human societies, female sexuality is suppressed by gendered double standards, s. shaming, sexist rape laws, and honour killings. The question of what motivates societies to punish promiscuous women, however, has been contested. Although some have argued that men suppress female sexuality to increase paternity certainty, others maintain that this is an example of intrasexual competition. Here we show that both sexes are averse to overt displays of female sexual...
Source: Evolution and Human Behavior - January 6, 2019 Category: Psychiatry & Psychology Source Type: research
Helping in young children and chimpanzees shows partiality towards friends
Publication date: Available online 4 January 2019Source: Evolution and Human BehaviorAuthor(s): Jan M. Engelmann, Lou M. Haux, Esther HerrmannAbstractFriendship naturally leads to treating some people differently from the way we treat everyone else. One manifestation of such preferential treatment is in the domain of prosociality: we are more likely to extend favors towards our friends. Little is known about the developmental and evolutionary roots of such preferential prosociality. Here, we investigate whether young children and chimpanzees show partiality towards friends in helping contexts. Results show that young child...
Source: Evolution and Human Behavior - January 4, 2019 Category: Psychiatry & Psychology Source Type: research
