It's my idea! Reputation management and idea appropriation
Publication date: Available online 25 March 2020Source: Evolution and Human BehaviorAuthor(s): Sacha Altay, Yoshimasa Majima, Hugo Mercier (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - March 26, 2020 Category: Psychiatry & Psychology Source Type: research
Cultural and reproductive success and the causes of war: A Yanomamö perspective
Publication date: Available online 20 March 2020Source: Evolution and Human BehaviorAuthor(s): Raymond Hames (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - March 20, 2020 Category: Psychiatry & Psychology Source Type: research
In memoriam: Napoleon A. Chagnon
Publication date: Available online 18 March 2020Source: Evolution and Human BehaviorAuthor(s): Raymond Hames, William Irons, Mark Flinn (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - March 19, 2020 Category: Psychiatry & Psychology Source Type: research
Is impulsive behavior adaptive in harsh and unpredictable environments? A formal model
Publication date: Available online 14 March 2020Source: Evolution and Human BehaviorAuthor(s): Jesse Fenneman, Willem E. Frankenhuis (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - March 14, 2020 Category: Psychiatry & Psychology Source Type: research
Facial width-to-height ratio in chimpanzees: Links to age, sex and personality
Publication date: Available online 5 March 2020Source: Evolution and Human BehaviorAuthor(s): Vanessa Wilson, Alexander Weiss, Carmen E. Lefevre, Tomomi Ochiai, Tetsuro Matsuzawa, Miho Inoue-Murayama, Hani Freeman, Elizabeth S. Herrelko, Drew Altschul (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - March 5, 2020 Category: Psychiatry & Psychology Source Type: research
Reputation as a common source of cooperation and violent conflict: The case of the noble feud in early modern Germany
Publication date: Available online 28 February 2020Source: Evolution and Human BehaviorAuthor(s): Hillay Zmora (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - March 1, 2020 Category: Psychiatry & Psychology Source Type: research
Helping behavior is non-zero-sum: Helper and recipient autobiographical accounts of help
Publication date: Available online 19 February 2020Source: Evolution and Human BehaviorAuthor(s): Michael R. Ent, Hallgeir Sjåstad, William von Hippel, Roy F. BaumeisterAbstractIn three studies (n = 427), participants wrote and answered questions about autobiographical episodes involving helping behavior from the perspective of the helper vs. the recipient. Both helpers and recipients reported that the benefits of help outweighed the costs (i.e., the help was non-zero-sum). Helpers underestimated the degree to which recipients felt indebted as a result of receiving help. Recipients displayed a pattern of language use ...
Source: Evolution and Human Behavior - February 20, 2020 Category: Psychiatry & Psychology Source Type: research
Editorial Board
Publication date: March 2020Source: Evolution and Human Behavior, Volume 41, Issue 2Author(s): (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - February 20, 2020 Category: Psychiatry & Psychology Source Type: research
First tests of Euclidean preference integration in friendship: Euclidean friend value and power of choice on the friend market
Publication date: Available online 17 February 2020Source: Evolution and Human BehaviorAuthor(s): Jaimie Arona Krems, Daniel Conroy-BeamAbstractClose friendships are associated with greater happiness and improved health; historically, they would likely have provided beneficial fitness outcomes. Yet each friendship requires one's finite time and resources to develop and maintain. Because people can maintain only so many close relationships, including friendships, at any one time, choosing which prospective friends to pursue and invest in is likely to have been a recurrent adaptive problem. Moreover, not all friends are crea...
Source: Evolution and Human Behavior - February 18, 2020 Category: Psychiatry & Psychology Source Type: research
Immune function during early adolescence positively predicts adult facial sexual dimorphism in both men and women
Publication date: Available online 17 February 2020Source: Evolution and Human BehaviorAuthor(s): Yong Zhi Foo, Leigh W. Simmons, David I. Perrett, Patrick G. Holt, Peter R. Eastwood, Gillian RhodesAbstractEvolutionary theories suggest that humans prefer sexual dimorphism in faces because masculinity in men and femininity in women may be an indicator of immune function during development. In particular, the immunocompetence handicap hypothesis proposes that sexual dimorphism indicates good immune function during development because the sex hormones, particularly testosterone in men, required for the development of sexually...
Source: Evolution and Human Behavior - February 17, 2020 Category: Psychiatry & Psychology Source Type: research
On the use of “life history theory” in evolutionary psychology
Publication date: Available online 14 February 2020Source: Evolution and Human BehaviorAuthor(s): Stephen C. Stearns, António M.M. RodriguesAbstractWe critically review the use of the term “life history theory” in recent publications on evolutionary psychology, focusing on how the idea of a fast-slow continuum is deployed in that literature. We raise four issues:First, concerning plasticity, should we expect the effects of plasticity on the developmental response of a trait to mirror the effects of selection on the mean of that trait? We conclude that we should not. Do only plastic responses to harsh or unpredictable ...
Source: Evolution and Human Behavior - February 15, 2020 Category: Psychiatry & Psychology Source Type: research
Editorial Board
Publication date: January 2020Source: Evolution and Human Behavior, Volume 41, Issue 1Author(s): (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - January 10, 2020 Category: Psychiatry & Psychology Source Type: research
Vocal attractiveness and voluntarily pitch-shifted voices
In this study, we sought to determine whether speakers could affect their perceived vocal attractiveness by voluntarily shifting their own voices to reach specific target pitches (+20 Hz or −20 Hz, a pitch increment that is based on prior research). Two sets of Chinese college students participated in the research: 115 who served as speakers whose voices were recorded, and 167 who served as raters who evaluated the speakers' voices. We found that when female speakers increased their pitch they were judged as more attractive to both opposite-sex and same-sex raters. An additional unexpected finding was that male speak...
Source: Evolution and Human Behavior - January 10, 2020 Category: Psychiatry & Psychology Source Type: research
Waist to hip ratio and breast size modulate the processing of female body silhouettes: An EEG study
Publication date: Available online 7 January 2020Source: Evolution and Human BehaviorAuthor(s): Farid Pazhoohi, Joana Arantes, Alan Kingstone, Diego PinalAbstractWaist-to-hip ratio (WHR) and breast size are considered important biological features defining female body attractiveness; but their neurophysiological correlates remain largely unknown. To shed light on this issue, behavioral and electroencephalographic responses were recorded while healthy heterosexual men and women completed an oddball task, which was then followed by an attractiveness judgement task. In both cases participants were presented with female body f...
Source: Evolution and Human Behavior - January 7, 2020 Category: Psychiatry & Psychology Source Type: research
Sex-age stereotyping: Social perceivers as lay adaptationists
Publication date: Available online 24 December 2019Source: Evolution and Human BehaviorAuthor(s): Oliver Sng, Keelah E.G. Williams, Steven L. NeubergAbstractWhy do perceivers categorize and stereotype others by their biological sex and age? We suggest that perceivers do so because sex and age interactively shape adaptive goals (e.g., mating, parenting) and strategies. And because such goals and strategies pose different fitness-relevant opportunities and threats, social perceivers use others' sex-age as a cue for predicting others' behaviors. This perspective has multiple implications, which we test in a range of U.S. unde...
Source: Evolution and Human Behavior - December 25, 2019 Category: Psychiatry & Psychology Source Type: research
