Juliana E French, Elizabeth Barron, Emma E Altgelt, Maryanne L Fisher, Andrea L Meltzer
{"title":"Correction: Hormonal Contraceptives and Women's Mate-Value-Related Traits and Outcomes.","authors":"Juliana E French, Elizabeth Barron, Emma E Altgelt, Maryanne L Fisher, Andrea L Meltzer","doi":"10.1007/s12110-026-09530-3","DOIUrl":"https://doi.org/10.1007/s12110-026-09530-3","url":null,"abstract":"","PeriodicalId":47797,"journal":{"name":"Human Nature-An Interdisciplinary Biosocial Perspective","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148799796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Victoria V Rostovtseva, Marina L Butovskaya, Franz J Weissing
{"title":"Relationships Between Facial Expressions and Facial Shape.","authors":"Victoria V Rostovtseva, Marina L Butovskaya, Franz J Weissing","doi":"10.1007/s12110-026-09528-x","DOIUrl":"https://doi.org/10.1007/s12110-026-09528-x","url":null,"abstract":"<p><p>The relationship between facial expressions and facial shape is surprisingly understudied. We use facial videos and photographs, along with others' judgements, to investigate the interplay among facial morphology, dynamics, and perception. Facial expressions were quantified through Action Units (AUs) using the Facial Action Coding System. Facial shape was analysed using geometric morphometrics. Analysis of the relationships between 14 AUs and 13 morphological parameters revealed that women display more intense facial movements, but men exhibit a tighter link between facial movements and facial structures. Next, we used Principal Component Analysis for a broader categorisation. The principal components (PCs) of the AU data corresponded to groups of AUs, revealing specific facial expressions. Three of the expressions thus identified were the same in both sexes, while the fourth was sex specific. The PCs of the morphometric data were more mosaic in composition; however, one male and one female PC largely agreed, reflecting a similar facial-shape phenotype. In both sexes, this facial shape dimension was associated with the tendency to produce a Duchenne smile. In turn, the expression of a Duchenne smile systematically affected how people in the videos were judged by an independent panel on various attributes (e.g., generosity, trustworthiness, happiness). In men, a male-specific PC of the morphometric data corresponded to facial masculinity, as determined by Linear Discriminant Analysis. Men with more masculine facial shapes were more likely to produce lower-face anger expression. We conclude that natural facial expressions are to a certain extent related to facial morphology, especially in men.</p>","PeriodicalId":47797,"journal":{"name":"Human Nature-An Interdisciplinary Biosocial Perspective","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148707962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Juliana E French, Elizabeth Barron, Emma E Altgelt, Maryanne L Fisher, Andrea L Meltzer
{"title":"Hormonal Contraceptives and Women's Mate-Value-Related Traits and Outcomes.","authors":"Juliana E French, Elizabeth Barron, Emma E Altgelt, Maryanne L Fisher, Andrea L Meltzer","doi":"10.1007/s12110-026-09529-w","DOIUrl":"10.1007/s12110-026-09529-w","url":null,"abstract":"<p><p>People's perceptions of their mate value-a compilation of characteristics that are desirable to potential partners-functionally guide their mating behaviors. Hormonal contraceptives alter the hormonal profiles linked to some characteristics underlying women's mate value (e.g., fertility, sociality, potential parenting ability). Thus, relative to naturally cycling women, women using hormonal contraceptives may perceive such characteristics more negatively (due to suppressed fertility) or positively (due to possible bolstered sociality and/or potential parenting ability). The purpose of this research was to test these competing possibilities. Study 1a and 1b utilized samples of single, undergraduate women and newly married women, respectively, to test the association between hormonal contraceptive use and a commonly used proxy for self-perceived mate value-self-perceived mating success. Study1b additionally tested whether the association emerged independently of sexual frequency. Study 2 tested the robustness of the observed association, using a larger sample of single women and a measure assessing perceived characteristics underlying mate value rather than perceived mating success. We then conducted a mini-meta-analysis to estimate the average effect size for all relevant effect sizes available to date. Across studies, women using hormonal contraceptives rated mate-value-relevant traits and outcomes more positively than naturally cycling women. This association is not due to sexual motives or sexual behaviors. The current research adds to a growing literature revealing differences in mating and relationship psychology between women who do versus do not use hormonal contraceptives.</p>","PeriodicalId":47797,"journal":{"name":"Human Nature-An Interdisciplinary Biosocial Perspective","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148698230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Oliver C Schultheiss, David Gebhardt, Elisabeth Meier, Sophie Steck, Monika Wulf, Paul Compensis, Martin G Köllner
{"title":"Correction: Deconstructing Kinsey's Scale: Digit Ratio Correlates Negatively with Gynephilia and Positively with Androphilia in Both Sexes.","authors":"Oliver C Schultheiss, David Gebhardt, Elisabeth Meier, Sophie Steck, Monika Wulf, Paul Compensis, Martin G Köllner","doi":"10.1007/s12110-026-09522-3","DOIUrl":"10.1007/s12110-026-09522-3","url":null,"abstract":"","PeriodicalId":47797,"journal":{"name":"Human Nature-An Interdisciplinary Biosocial Perspective","volume":" ","pages":"212-213"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13506619/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147785634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Arnaud Wolff, Laudine Carbuccia, Zineb Makine, Daniel Nettle
{"title":"Living on the Edge: Investigating Experiences of Poverty Through the Lens of the Desperation Threshold Model.","authors":"Arnaud Wolff, Laudine Carbuccia, Zineb Makine, Daniel Nettle","doi":"10.1007/s12110-026-09524-1","DOIUrl":"10.1007/s12110-026-09524-1","url":null,"abstract":"<p><p>The Desperation Threshold Model (DTM) seeks to explain conflicting findings about the risk propensity of people living in poverty, predicting risk aversion when they can still meet their basic needs, and risk taking when they cannot. The DTM makes assumptions: that people have a conception of basic needs, that their ability to meet these motivates their decisions, and that they modulate risky decisions depending on their ability to do so. The realism of these assumptions has not yet been investigated. To start filling this gap, we investigated experiences of poverty through the lens of the DTM, using two complementary approaches: a pre-registered online survey with British participants (n = 300) and semi-structured qualitative interviews with very low-income individuals in France (n = 14). Our results imply that basic needs have both a context-general component and context-specific elaborations. Furthermore, participants often relied on social and institutional resources when experiencing financial adversity, indicating that measuring only personal income or wealth might not accurately capture the resources available to people. With respect to the DTM's main predictions, most individuals close to-but still above-the desperation threshold exhibited caution and took a safety-first approach, consistent with risk-averse behavior. Risky or antisocial behaviors (e.g., cheating, stealing) emerged only in rare instances of severe financial hardship and complete lack of external support. These results suggest that the DTM's main assumptions are empirically grounded but that they need to be qualified in specific ways. They also suggest that abstract models like the DTM can capture something about the experience of people living in conditions of poverty.</p>","PeriodicalId":47797,"journal":{"name":"Human Nature-An Interdisciplinary Biosocial Perspective","volume":" ","pages":"192-211"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147822253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Maladaptation with a Fast Pace of Life - the Case of Psychosis-Proneness.","authors":"Janko Međedović","doi":"10.1007/s12110-026-09519-y","DOIUrl":"10.1007/s12110-026-09519-y","url":null,"abstract":"","PeriodicalId":47797,"journal":{"name":"Human Nature-An Interdisciplinary Biosocial Perspective","volume":" ","pages":"125-149"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147677770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rachel E Brandon, Annika From, Miranda Reynaga, Helen Devine, Amie M Gordon, Robin S Edelstein
{"title":"Testosterone Changes in Couples in Response to a Caregiving Task with an Infant Simulator.","authors":"Rachel E Brandon, Annika From, Miranda Reynaga, Helen Devine, Amie M Gordon, Robin S Edelstein","doi":"10.1007/s12110-026-09520-5","DOIUrl":"10.1007/s12110-026-09520-5","url":null,"abstract":"","PeriodicalId":47797,"journal":{"name":"Human Nature-An Interdisciplinary Biosocial Perspective","volume":" ","pages":"172-191"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13506511/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147785629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Oliver C Schultheiss, David Gebhardt, Elisabeth Meier, Sophie Steck, Monika Wulf, Paul Compensis, Martin G Köllner
{"title":"Deconstructing Kinsey's Scale: Digit Ratio Correlates Negatively with Gynephilia and Positively with Androphilia in Both Sexes.","authors":"Oliver C Schultheiss, David Gebhardt, Elisabeth Meier, Sophie Steck, Monika Wulf, Paul Compensis, Martin G Köllner","doi":"10.1007/s12110-026-09518-z","DOIUrl":"10.1007/s12110-026-09518-z","url":null,"abstract":"","PeriodicalId":47797,"journal":{"name":"Human Nature-An Interdisciplinary Biosocial Perspective","volume":" ","pages":"150-171"},"PeriodicalIF":2.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13506557/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147692801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Kin Selection Underpins Family Dynamics in Rural China.","authors":"Qiao-Qiao He, Ming-Yang Wang, Jia-Jia Wu, Yi Tao, Jie-Ru Yu, Tian-Jiao Feng, Song-Hua Tang, Ling-Ling Deng, Ruth Mace, Xiu-Deng Zheng, Ting Ji","doi":"10.1007/s12110-026-09514-3","DOIUrl":"10.1007/s12110-026-09514-3","url":null,"abstract":"<p><p>As one of the most important characteristics of human families, the number of coresident members (household size) varies widely in different historical times and cultures. However, whether an optimal household size and an evolutionarily stable household size exist remains to be theoretically and empirically tested. Here, we developed a theoretical model among relatives based on kin selection and game theory to investigate the interplay of household size and cooperation. We then use a decade of household dynamic data from a rural population in southwestern China (1,110 households) to test the associations between household size, household dynamics and cooperation. The theoretical analysis suggests the existence of an optimal household size and an evolutionarily stable household size (which are not necessarily the same) by considering the average local relatedness and the changes of the average inclusive fitness payoff of the family. The data analysis shows that average relatedness ([Formula: see text]) decreases with increasing household size, and [Formula: see text] is associated with helping behaviour (especially for the elders) in the household; thus, the household tends to maintain a relatively high level of average relatedness by adjusting the number of coresident members through demographic events such as birth and moving out. These findings help explain the variation in household size in different cultures and demonstrate the importance of kin selection as an intrinsic factor in regulating family dynamics.</p>","PeriodicalId":47797,"journal":{"name":"Human Nature-An Interdisciplinary Biosocial Perspective","volume":" ","pages":"1-22"},"PeriodicalIF":2.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147379268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}