Children's judgements of facial hair are influenced by biological development and experience
We presented pairs of bearded and clean-shaven faces to children (2–17 years old; N = 470) and adults (18–22 years; N = 164) and asked them to judge dominance traits (strength, age, masculinity) and mate choice traits (attractiveness, parenting quality). Young children associated beardedness with dominance traits but not mate choice traits. This pattern became more extreme during late childhood and gradually shifted toward adult-like responses during early adolescence. Responses for all traits were adult-like in late adolescence. Finally, having a bearded father was associated with positive judgments of bea...
Source: Evolution and Human Behavior - June 22, 2019 Category: Psychiatry & Psychology Source Type: research
Evidence supporting nubility and reproductive value as the key to human female physical attractiveness
Publication date: Available online 8 May 2019Source: Evolution and Human BehaviorAuthor(s): William D. Lassek, Steven J.C. GaulinAbstractSelection should favor mating preferences that increase the chooser's reproductive success. Many previous studies have shown that the women men find most attractive in well-nourished populations have low body mass indices (BMIs) and small waist sizes combined with relatively large hips, resulting in low waist-hip ratios (WHRs). A frequently proposed explanation for these preferences is that such women may have enhanced health and fertility; but extensive evidence contradicts this health-a...
Source: Evolution and Human Behavior - June 20, 2019 Category: Psychiatry & Psychology Source Type: research
A critique of life history approaches to human trait covariation
Publication date: Available online 8 June 2019Source: Evolution and Human BehaviorAuthor(s): Brendan P. Zietsch, Morgan J. SidariAbstractCovariation of life history traits across species may be organised on a ‘fast-slow’ continuum. A burgeoning literature in psychology and social science argues that trait covariation should be similarly organised across individuals within human populations. Here we describe why extrapolating from inter-species to inter-individual trait covariation is not generally appropriate. The process that genetically tailors species to their environments (i.e. Darwinian evolution) is fundamentally...
Source: Evolution and Human Behavior - June 10, 2019 Category: Psychiatry & Psychology Source Type: research
The attention–aversion gap: how allocation of attention relates to loss aversion
Publication date: Available online 31 May 2019Source: Evolution and Human BehaviorAuthor(s): Tomás Lejarraga, Michael Schulte-Mecklenbeck, Thorsten Pachur, Ralph HertwigAbstractLoss aversion is often assumed to be a basic and far-reaching psychological regularity in behavior. Yet empirical evidence is accumulating to challenge the assumption of widespread loss aversion in choice. We suggest that a key reason for the apparently elusive nature of loss aversion may be that its manifestation in choice is state-dependent and distinct from a more state-independent principle of heightened attention to losses relative to gains. U...
Source: Evolution and Human Behavior - June 1, 2019 Category: Psychiatry & Psychology Source Type: research
The evolution of plant social learning through error minimization
Publication date: Available online 28 May 2019Source: Evolution and Human BehaviorAuthor(s): Leonardo Oña, Linda S. Oña, Annie E. WertzAbstractPlants have developed toxic chemical and physical defenses as a consequence of their co-evolution with herbivores. Humans, like other animal species, have evolved strategies to protect themselves from such plant dangers. For example, recent studies have shown that human infants exhibit a reluctance to manually explore plants and use social learning (SL) to acquire knowledge about plants. However, SL can also be costly under certain circumstances and there is reason to suspect this...
Source: Evolution and Human Behavior - May 30, 2019 Category: Psychiatry & Psychology Source Type: research
Psychological cycle shifts redux: Revisiting a preregistered study examining preferences for muscularity
Publication date: Available online 24 May 2019Source: Evolution and Human BehaviorAuthor(s): Steven W. Gangestad, Tran Dinh, Nicholas M. Grebe, Marco Del Giudice, Melissa Emery ThompsonAbstractJünger et al. (2018) conducted a preregistered study examining whether women particularly prefer muscular bodies when conceptive in their cycles. Despite an impressive number of participants and within-woman observations, they found no evidence for a preference shift; rather, they claimed, conceptive women find all male bodies more attractive. We preregistered a separate study very similar to Jünger et al.'s, with specified analyse...
Source: Evolution and Human Behavior - May 25, 2019 Category: Psychiatry & Psychology Source Type: research
Rhesus macaques use probabilities to predict future events
Publication date: Available online 23 May 2019Source: Evolution and Human BehaviorAuthor(s): Francesca De Petrillo, Alexandra G. RosatiAbstractHumans can use an intuitive sense of statistics to make predictions about uncertain future events, a cognitive skill that underpins logical and mathematical reasoning. Recent research shows that some of these abilities for statistical inferences can emerge in preverbal infants and non-human primates such as apes and capuchins. An important question is therefore whether animals share the full complement of intuitive reasoning abilities demonstrated by humans, as well as what evolutio...
Source: Evolution and Human Behavior - May 25, 2019 Category: Psychiatry & Psychology Source Type: research
Editorial Board
Publication date: July 2019Source: Evolution and Human Behavior, Volume 40, Issue 4Author(s): (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - May 22, 2019 Category: Psychiatry & Psychology Source Type: research
You watch my back, I'll watch yours: Emergence of collective risk monitoring through tacit coordination in human social foraging
Publication date: Available online 21 May 2019Source: Evolution and Human BehaviorAuthor(s): Kiri Kuroda, Tatsuya KamedaAbstractPredation risk is a significant concern when social animals including humans engage in foraging. When people search for resources together, individuals often find themselves in a producer–scrounger game, in which some individuals bear the cost of risk monitoring while others can free ride on those efforts. A theoretically rational strategy is to mix foraging and risk monitoring randomly with the same probability across all members, but such uncoordinated action often yields inefficiencies of und...
Source: Evolution and Human Behavior - May 22, 2019 Category: Psychiatry & Psychology Source Type: research
Response to vocal music in Angelman syndrome contrasts with Prader-Willi syndrome
We report the necessary complementary pattern here: individuals with Angelman syndrome, a genomic imprinting disorder resulting from increased relative paternal genetic contribution, demonstrate a relatively reduced relaxation response to song, suggesting increased demand for parental attention. These results support the extension of genetic conflict theories to psychological resources like parental attention. (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - May 19, 2019 Category: Psychiatry & Psychology Source Type: research
The emotion–valuation constellation: Multiple emotions are governed by a common grammar of social valuation
Publication date: Available online 9 May 2019Source: Evolution and Human BehaviorAuthor(s): Daniel Sznycer, Aaron W. LukaszewskiAbstractSocial emotions are hypothesized to be adaptations designed by selection to solve adaptive problems pertaining to social valuation—the disposition to attend to, associate with, and aid a target individual based on her probable contributions to the fitness of the valuer. To steer between effectiveness and economy, social emotions need to activate in precise proportion to the local evaluations of the various acts and characteristics that dictate the social value of self and others. Support...
Source: Evolution and Human Behavior - May 10, 2019 Category: Psychiatry & Psychology Source Type: research
Evidence supporting nubility and reproducitve value as the key to human female physical attractiveness
Publication date: Available online 8 May 2019Source: Evolution and Human BehaviorAuthor(s): William D. Lassek, Steven J.C. GaulinAbstractSelection should favor mating preferences that increase the chooser's reproductive success. Many previous studies have shown that the women men find most attractive in well-nourished populations have low body mass indices (BMIs) and small waist sizes combined with relatively large hips, resulting in low waist-hip ratios (WHRs). A frequently proposed explanation for these preferences is that such women may have enhanced health and fertility; but extensive evidence contradicts this health-a...
Source: Evolution and Human Behavior - May 9, 2019 Category: Psychiatry & Psychology Source Type: research
Corrigendum to “common knowledge, coordination, and the logic of self-conscious emotions” [Evolution and Human Behavior volume 39, issue 2, march 2018, pages 179–190]
Publication date: Available online 3 May 2019Source: Evolution and Human BehaviorAuthor(s): Kyle A. Thomas, Peter DeScioli, Steven Pinker (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - May 5, 2019 Category: Psychiatry & Psychology Source Type: research
Corrigendum to ‘Going the distance, going for speed: Honest signaling and the benefits of exercising with an opposite-sex partner’ [Evolution and Human Behavior Volume 40, Issue 2, March 2019, Pages 167-175]
Publication date: Available online 19 April 2019Source: Evolution and Human BehaviorAuthor(s): Michael D. Baker, Mark E. Nabell, Nicholas Thomas, Heather Nicole Sloan, Rachel L. Utter, Alexandra Hall, Nicole D. Fox, Jessica A. Beringer (Source: Evolution and Human Behavior)
Source: Evolution and Human Behavior - April 20, 2019 Category: Psychiatry & Psychology Source Type: research
Grandmaternal childcare and kinship laterality. Is rural Greece exceptional?
Publication date: Available online 10 April 2019Source: Evolution and Human BehaviorAuthor(s): Martin Daly, Gretchen PerryAbstractGrandmothers provide more childcare for their daughters' children than for those of their sons, almost everywhere. Exceptions occur where virilocal (patrilocal) postmarital residence makes the children of sons more accessible, but even under virilocality, preferential care of daughters' children, net of the effects of proximity, is often demonstrable. A unique counter-example has been reported by Pashos (2000, Evolution & Human Behavior, 21, 97–109) who found that rural Greek grandmothers care...
Source: Evolution and Human Behavior - April 11, 2019 Category: Psychiatry & Psychology Source Type: research
