God, sex, and money among the ultra-Orthodox in Israel: An integrated sociocultural and evolutionary perspective
Publication date: Available online 12 June 2018Source: Evolution and Human BehaviorAuthor(s): Nechumi Malovicki Yaffe, Melissa McDonald, Eran Halperin, Tamar SaguyAbstractThe origin of the tendency for men to value wealth more than women can be explained by both social role theory and evolutionary theory. We integrate these two perspectives to provide insight into a unique cultural context, the Jewish ultra-Orthodox community in Israel, where social roles are reversed, such that women are the primary breadwinners in the family. Studies 1a and 1b provide support for social role theory's claim that men and women will interna...
Source: Evolution and Human Behavior - July 5, 2018 Category: Psychiatry & Psychology Source Type: research

Social observation increases deontological judgments in moral dilemmas
Publication date: Available online 18 June 2018Source: Evolution and Human BehaviorAuthor(s): Minwoo Lee, Sunhae Sul, Hackjin KimAbstractA concern for positive reputation is one of the core motivations underlying various social behaviors in humans. The present study investigated how experimentally induced reputation concern modulates judgments in moral dilemmas. In a mixed-design experiment, participants were randomly assigned to the observed vs. the control group and responded to a series of trolley-type moral dilemmas either in the presence or absence of observers, respectively. While no significant baseline difference i...
Source: Evolution and Human Behavior - July 5, 2018 Category: Psychiatry & Psychology Source Type: research

Post-marital residence patterns show lineage-specific evolution
Publication date: Available online 18 June 2018Source: Evolution and Human BehaviorAuthor(s): Jiří C. Moravec, Quentin Atkinson, Claire Bowern, Simon J. Greenhill, Fiona M. Jordan, Robert M. Ross, Russell Gray, Stephen Marsland, Murray P. CoxAbstractWhere a newly-married couple lives, termed post-marital residence, varies cross-culturally and changes over time. While many factors have been proposed as drivers of this change, among them general features of human societies like warfare, migration and gendered division of subsistence labour, little is known about whether changes in residence patterns exhibit global regulari...
Source: Evolution and Human Behavior - July 5, 2018 Category: Psychiatry & Psychology Source Type: research

Brazil's football warriors: Social bonding and inter-group violence
Publication date: Available online 21 June 2018Source: Evolution and Human BehaviorAuthor(s): Martha Newson, Tiago Bortolini, Michael Buhrmester, Silvio Ricardo da Silva, Jefferson Nicássio Queiroga da Aquino, Harvey WhitehouseAbstractFootball-related violence (hooliganism) is a global problem. Previous work has proposed that hooliganism is an expression of social maladjustment. Here we test an alternative hypothesis, that hooliganism is typically motivated by a parochial form of prosociality, the evolutionary origins of which may lie in intergroup raiding and warfare. In a survey of Brazilian football fans (N = 465),...
Source: Evolution and Human Behavior - July 5, 2018 Category: Psychiatry & Psychology Source Type: research

Intergenerational incest aversion: self-reported sexual arousal and disgust to hypothetical sexual contact with family members
Publication date: Available online 22 June 2018Source: Evolution and Human BehaviorAuthor(s): Paula Kresanov, Jennifer Kotler, Michael Seto, Debra Lieberman, Pekka Santtila, Jan AntfolkAbstractThe biological costs of inbreeding are expected to have shaped human incest aversion. These costs depend on biological sex, relatedness, and age. Whereas previous studies have focused on investigating how these factors modulate incest aversion in siblings and cousins—family members of the same generation—here we examined relatives of different generations. In a population-based sample, 2499 respondents reported reactions to imagi...
Source: Evolution and Human Behavior - July 5, 2018 Category: Psychiatry & Psychology Source Type: research

A noisy signal: To what extent are Hadza hunting reputations predictive of actual hunting skills?
Publication date: Available online 22 June 2018Source: Evolution and Human BehaviorAuthor(s): Duncan N.E. Stibbard-Hawkes, Robert D. Attenborough, Frank W. MarloweAbstractThe measurement of hunting ability has been central to several debates about the goals of men's hunting among the Hadza and other hunter-gatherer populations. Hunting ability has previously been measured indirectly, by weighing the amount of food individuals bring back to camp over an extended period, their central place hunting return rate, and by conducting hunting ability interviews. Despite the centrality of the hunting ability concept, some authors (...
Source: Evolution and Human Behavior - July 5, 2018 Category: Psychiatry & Psychology Source Type: research

You’re Not My Type: Do Conservatives Have a Bias for Seeing Long-Term Mates?
Publication date: Available online 26 June 2018Source: Evolution and Human BehaviorAuthor(s): Naomi K. Muggleton, Corey L. FincherAbstractWhen choosing a mate, humans favour genetic traits (attractiveness, high sex drive) for short-term relationships and parental traits (warmth, high status) for long-term relationships. These preferences serve to maximise fitness of future offspring. But this model neglects the role of social norms in shaping evolved mating strategies. In conservative cultures, individuals are likely to face costs such as punishment for short-term mating. Here we show that conservatives over-perceive some ...
Source: Evolution and Human Behavior - July 5, 2018 Category: Psychiatry & Psychology Source Type: research

Reply to Fleischman and Fessler's (2018) comment on “Hormonal correlates of pathogen disgust: Testing the Compensatory Prophylaxis Hypothesis”
Publication date: July 2018Source: Evolution and Human Behavior, Volume 39, Issue 4Author(s): Benedict C. Jones, Amanda C. Hahn, Claire I. Fisher, Hongyi Wang, Michal Kandrik, Anthony J. Lee, Joshua M. Tybur, Lisa M. DeBruine (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - July 5, 2018 Category: Psychiatry & Psychology Source Type: research

Editorial Board
Publication date: July 2018Source: Evolution and Human Behavior, Volume 39, Issue 4Author(s): (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - July 5, 2018 Category: Psychiatry & Psychology Source Type: research

A high-powered replication study finds no effect of starting or stopping hormonal contraceptive use on relationship quality
Publication date: July 2018Source: Evolution and Human Behavior, Volume 39, Issue 4Author(s): Patrick Jern, Antti Kärnä, Janna Hujanen, Tatu Erlin, Annika Gunst, Helmi Rautaheimo, Emilia Öhman, S. Craig Roberts, Brendan P. ZietschAbstractA number of recent studies have implicated that incongruent use of hormonal contraceptives (HCs) negatively affects various aspects of women's romantic relationships. It has been suggested that women with incongruent HC use (a discrepancy in HC use status between when they first met their current partner and the time of study participation) report less sexual satisfaction and higher jea...
Source: Evolution and Human Behavior - July 5, 2018 Category: Psychiatry & Psychology Source Type: research

Our better nature: Does resource stress predict beyond-household sharing?
Publication date: July 2018Source: Evolution and Human Behavior, Volume 39, Issue 4Author(s): Carol R. Ember, Ian Skoggard, Erik J. Ringen, Megan FarrerAbstractFood sharing and (to a lesser extent) labor sharing play central roles in the evolution of cooperation literature. One popular explanation for sharing beyond the family is that it reduces the likelihood of shortages by pooling risk across households. However, the frequency and scope of sharing have never been systematically documented across nonindustrial societies, and the literature is driven by theoretical models, experimental games, and case studies among a few ...
Source: Evolution and Human Behavior - July 5, 2018 Category: Psychiatry & Psychology Source Type: research

Detecting wholesale copying in cultural evolution
Publication date: July 2018Source: Evolution and Human Behavior, Volume 39, Issue 4Author(s): Olivier Morin, Helena MitonAbstractA cultural practice can spread because it is transmitted with high fidelity, but also because biased transformation leads to its reinvention. The respective effect of these two mechanisms, however, may only be quantified if we can measure and detect high-fidelity transmission. This paper proposes wholesale copying, the reproduction of a set of elements as a set, as an operational definition. Using two corpus of heraldic designs (total n = 13,453), we apply information-theoretic tools to...
Source: Evolution and Human Behavior - July 5, 2018 Category: Psychiatry & Psychology Source Type: research

Sex differences in political leadership in an egalitarian society
Publication date: July 2018Source: Evolution and Human Behavior, Volume 39, Issue 4Author(s): Chris von Rueden, Sarah Alami, Hillard Kaplan, Michael GurvenAbstractWe test the contribution of sex differences in physical formidability, education, and cooperation to the acquisition of political leadership in a small-scale society. Among forager-farmers from the Bolivian Amazon, we find that men are more likely to exercise different forms of political leadership, including verbal influence during community meetings, coordination of community projects, and dispute resolution. We show that these differences in leadership are not...
Source: Evolution and Human Behavior - July 5, 2018 Category: Psychiatry & Psychology Source Type: research

Fertile women evaluate male bodies as more attractive, regardless of masculinity
Publication date: July 2018Source: Evolution and Human Behavior, Volume 39, Issue 4Author(s): Julia Jünger, Tobias L. Kordsmeyer, Tanja M. Gerlach, Lars PenkeAbstractOvulatory cycle shifts in women's mate preferences have been documented for several physical and behavioral traits. Research suggests that, at peak fertility, women tend to prefer men with characteristics that reflect good genes for short-term sexual relationships. However, existing findings have been criticized for methodological flexibility and failing attempts to replicate core results. In a large (N = 157), pre-registered, within-subject study s...
Source: Evolution and Human Behavior - July 5, 2018 Category: Psychiatry & Psychology Source Type: research

The relative importance of intra- and intersexual selection on human male sexually dimorphic traits
Publication date: July 2018Source: Evolution and Human Behavior, Volume 39, Issue 4Author(s): Tobias L. Kordsmeyer, John Hunt, David A. Puts, Julia Ostner, Lars PenkeAbstractRecent evidence suggests that in sexual selection on human males, intrasexual competition plays a larger role than female choice. In a sample of men (N = 164), we sought to provide further evidence on the effects of men's physical dominance and sexual attractiveness on mating success and hence in sexual selection. Objective measures and subjective ratings of male sexually dimorphic traits purportedly under sexual selection (height, vocal and facial...
Source: Evolution and Human Behavior - July 5, 2018 Category: Psychiatry & Psychology Source Type: research