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Visine A, Durand V, Guillou L, Raymond M, Berticat C. Chronic and immediate refined carbohydrate consumption and facial attractiveness. PLoS One 2024; 19:e0298984. [PMID: 38446775 PMCID: PMC10917283 DOI: 10.1371/journal.pone.0298984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 02/01/2024] [Indexed: 03/08/2024] Open
Abstract
The Western diet has undergone a massive switch since the second half of the 20th century, with the massive increase of the consumption of refined carbohydrate associated with many adverse health effects. The physiological mechanisms linked to this consumption, such as hyperglycaemia and hyperinsulinemia, may impact non medical traits such as facial attractiveness. To explore this issue, the relationship between facial attractiveness and immediate and chronic refined carbohydrate consumption estimated by glycemic load was studied for 104 French subjects. Facial attractiveness was assessed by opposite sex raters using pictures taken two hours after a controlled breakfast. Chronic consumption was assessed considering three high glycemic risk meals: breakfast, afternoon snacking and between-meal snacking. Immediate consumption of a high glycemic breakfast decreased facial attractiveness for men and women while controlling for several control variables, including energy intake. Chronic refined carbohydrate consumption had different effects on attractiveness depending on the meal and/or the sex. Chronic refined carbohydrate consumption, estimated by the glycemic load, during the three studied meals reduced attractiveness, while a high energy intake increased it. Nevertheless, the effect was reversed for men concerning the afternoon snack, for which a high energy intake reduced attractiveness and a high glycemic load increased it. These effects were maintained when potential confounders for facial attractiveness were controlled such as age, age departure from actual age, masculinity/femininity (perceived and measured), BMI, physical activity, parental home ownership, smoking, couple status, hormonal contraceptive use (for women), and facial hairiness (for men). Results were possibly mediated by an increase in age appearance for women and a decrease in perceived masculinity for men. The physiological differences between the three meals studied and the interpretation of the results from an adaptive/maladaptive point of view in relation to our new dietary environment are discussed.
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Affiliation(s)
- Amandine Visine
- ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
| | - Valérie Durand
- ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
| | - Léonard Guillou
- ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
| | - Michel Raymond
- ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
| | - Claire Berticat
- ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
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Wartime forced sex as a male mating strategy. Theory Biosci 2023; 142:67-85. [PMID: 36710290 DOI: 10.1007/s12064-023-00386-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 01/02/2023] [Indexed: 01/31/2023]
Abstract
The aim of this study was an analytical justification of the emergence and presence of the phenomenon of war among hominins, taking into account males' genetic benefits gained through war in the natural environment. Based on chimpanzee behavior, the analytical model of the primary warrior balance was explored, comparing the risk of a war expedition with the genetic profits from war rape-"life and death balance". On the profits side, genetic gains possible to obtain in terms of permanent attractiveness of females (warrior status and abductions of females) were also included. Kin cooperation, parochial altruism, and "partisan strategy" have been defined as psychological mechanisms that enable effective group violence. Male genetic benefit from a war rape could exceed the risk of a warrior's death in the chimpanzee-human LCA species; transition from the herd to the patriarchal tribal social system could increase warrior's genetic gains from war. At the root of war lie sexual limitations of cooperating males, induced by female sexual preferences and lack of the permanent female sexual drive. War rape allows reproductive success for dominated and thus sexually restricted males. Tendencies for group aggression to gain access to out-group females (the war gene) are common among sexually restricted men. Resource-rich areas favor increase in human population density, this affects group territoriality and promotes intergroup conflicts, and thus patriarchy. Roots of conventional patriarchal marriage are strongly combined with war-"the right to land entails the right to a female".
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Hosťovecký M, Riegert J, Pazda A, Prokop P. Skin Conductivity Responses to Images of War and Sports in Men and Women: An Evolutionary Perspective. ADAPTIVE HUMAN BEHAVIOR AND PHYSIOLOGY 2022. [DOI: 10.1007/s40750-022-00186-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Greitemeyer T. Unattractive people are unaware of their (un)attractiveness. Scand J Psychol 2020; 61:471-483. [PMID: 32157701 PMCID: PMC7384173 DOI: 10.1111/sjop.12631] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 02/12/2020] [Indexed: 11/28/2022]
Abstract
Past research has shown that how people rate their physical attractiveness is only moderately correlated with how they are rated by others, suggesting that at least some people have little insight into their true level of attractiveness. The present research tests the hypothesis that unattractive people are not aware of their unattractiveness. In fact, six studies (overall N = 1,180) showed that unattractive participants considerably overestimated their attractiveness compared to ratings by strangers. In contrast, attractive participants were more accurate. If anything, they underestimated their attractiveness. It was also examined why unattractive people overestimate their attractiveness. As expected, unattractive participants differentiated less between attractive and unattractive stimulus persons than did attractive participants. They were also more likely than attractive participants to select unattractive stimulus persons to compare themselves to. However, these tendencies did not account for why unattractive participants overestimated their attractiveness, nor did affirming participant's self-worth. Limitations and avenues for future research are discussed.
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Goetz CD, Pillsworth EG, Buss DM, Conroy-Beam D. Evolutionary Mismatch in Mating. Front Psychol 2019; 10:2709. [PMID: 31866904 PMCID: PMC6904347 DOI: 10.3389/fpsyg.2019.02709] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 11/15/2019] [Indexed: 01/31/2023] Open
Abstract
Evolutionary mismatch concepts are being fruitfully employed in a number of research domains, including medicine, health, and human cognition and behavior to generate novel hypotheses and better understand existing findings. We contend that research on human mating will benefit from explicitly addressing both the evolutionary mismatch of the people we study and the evolutionary mismatch of people conducting the research. We identified nine mismatch characteristics important to the study of human mating and reviewed the literature related to each of these characteristics. Many of the people we study are: exposed to social media, in temporary relationships, relocatable, autonomous in their mating decisions, nulliparous, in groups that are socially segmented, in an educational setting, confronted with lots of options, and young. We applied mismatch concepts to each characteristic to illustrate the importance of incorporating mismatch into this research area. Our aim in this paper is not to identify all potential mismatch effects in mating research, nor to challenge or disqualify existing data. Rather, we demonstrate principled ways of thinking about evolutionary mismatch in order to propel progress in mating research. We show how attending to the potential effects of mismatch can help us refine our theoretical and methodological approaches and deepen our understanding of existing patterns in the empirical record. We conclude with specific recommendations about how to include consideration of evolutionary mismatch into research on human mating.
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Affiliation(s)
- Cari D. Goetz
- Department of Psychology, California State University, San Bernardino, San Bernardino, CA, United States
| | - Elizabeth G. Pillsworth
- Division of Anthropology, Evolutionary Anthropology Program, California State University, Fullerton, Fullerton, CA, United States
| | - David M. Buss
- Department of Psychology, The University of Texas at Austin, Austin, TX, United States
| | - Daniel Conroy-Beam
- Department of Psychological & Brain Sciences, University of California, Santa Barbara, Santa Barbara, CA, United States
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An Updated Theoretical Framework for Human Sexual Selection: from Ecology, Genetics, and Life History to Extended Phenotypes. ADAPTIVE HUMAN BEHAVIOR AND PHYSIOLOGY 2018. [DOI: 10.1007/s40750-018-0103-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Sell A, Sznycer D, Cosmides L, Tooby J, Krauss A, Nisu S, Ceapa C, Petersen MB. Physically strong men are more militant: A test across four countries. EVOL HUM BEHAV 2017. [DOI: 10.1016/j.evolhumbehav.2016.11.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Silva A, Macedo AF, Albuquerque PB, Arantes J. Always on My Mind? Recognition of Attractive Faces May Not Depend on Attention. Front Psychol 2016; 7:53. [PMID: 26858683 PMCID: PMC4731522 DOI: 10.3389/fpsyg.2016.00053] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 01/11/2016] [Indexed: 11/23/2022] Open
Abstract
Little research has examined what happens to attention and memory as a whole when humans see someone attractive. Hence, we investigated whether attractive stimuli gather more attention and are better remembered than unattractive stimuli. Participants took part in an attention task – in which matrices containing attractive and unattractive male naturalistic photographs were presented to 54 females, and measures of eye-gaze location and fixation duration using an eye-tracker were taken – followed by a recognition task. Eye-gaze was higher for the attractive stimuli compared to unattractive stimuli. Also, attractive photographs produced more hits and false recognitions than unattractive photographs which may indicate that regardless of attention allocation, attractive photographs produce more correct but also more false recognitions. We present an evolutionary explanation for this, as attending to more attractive faces but not always remembering them accurately and differentially compared with unseen attractive faces, may help females secure mates with higher reproductive value.
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Affiliation(s)
- André Silva
- Human Cognition Laboratory, Department of Basic Psychology, School of Psychology, University of Minho Braga, Portugal
| | - António F Macedo
- Department of Physics, School of Sciences, University of Minho Braga, Portugal
| | - Pedro B Albuquerque
- Human Cognition Laboratory, Department of Basic Psychology, School of Psychology, University of Minho Braga, Portugal
| | - Joana Arantes
- Human Cognition Laboratory, Department of Basic Psychology, School of Psychology, University of Minho Braga, Portugal
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Rusch H, Leunissen JM, van Vugt M. Historical and experimental evidence of sexual selection for war heroism. EVOL HUM BEHAV 2015. [DOI: 10.1016/j.evolhumbehav.2015.02.005] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Winking J, Koster J. The Fitness Effects of Men’s Family Investments. HUMAN NATURE-AN INTERDISCIPLINARY BIOSOCIAL PERSPECTIVE 2015; 26:292-312. [DOI: 10.1007/s12110-015-9237-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Rusch H. The evolutionary interplay of intergroup conflict and altruism in humans: a review of parochial altruism theory and prospects for its extension. Proc Biol Sci 2015; 281:20141539. [PMID: 25253457 DOI: 10.1098/rspb.2014.1539] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Drawing on an idea proposed by Darwin, it has recently been hypothesized that violent intergroup conflict might have played a substantial role in the evolution of human cooperativeness and altruism. The central notion of this argument, dubbed 'parochial altruism', is that the two genetic or cultural traits, aggressiveness against the out-groups and cooperativeness towards the in-group, including self-sacrificial altruistic behaviour, might have coevolved in humans. This review assesses the explanatory power of current theories of 'parochial altruism'. After a brief synopsis of the existing literature, two pitfalls in the interpretation of the most widely used models are discussed: potential direct benefits and high relatedness between group members implicitly induced by assumptions about conflict structure and frequency. Then, a number of simplifying assumptions made in the construction of these models are pointed out which currently limit their explanatory power. Next, relevant empirical evidence from several disciplines which could guide future theoretical extensions is reviewed. Finally, selected alternative accounts of evolutionary links between intergroup conflict and intragroup cooperation are briefly discussed which could be integrated with parochial altruism in the future.
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Affiliation(s)
- Hannes Rusch
- Behavioural and Institutional Economics, JLU Giessen, Giessen, Germany Philosophy of Biology, JLU Giessen, Giessen, Germany Peter Löscher Chair of Business Ethics, TU München, Arcisstrasse 21, Munich 80333, Germany
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Beauty is in the in-group of the beholded: Intergroup differences in the perceived attractiveness of leaders. THE LEADERSHIP QUARTERLY 2014. [DOI: 10.1016/j.leaqua.2014.09.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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How Well Do Men’s Faces and Voices Index Mate Quality and Dominance? HUMAN NATURE-AN INTERDISCIPLINARY BIOSOCIAL PERSPECTIVE 2014; 25:200-12. [DOI: 10.1007/s12110-014-9194-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Toscano H, Schubert TW, Sell AN. Judgments of dominance from the face track physical strength. EVOLUTIONARY PSYCHOLOGY 2014; 12:1-18. [PMID: 24558653 PMCID: PMC10480952 DOI: 10.1556/jep.12.2014.1.1] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Accepted: 10/10/2013] [Indexed: 11/19/2022] Open
Abstract
It is commonly assumed that judgments of dominance from faces partly rely on implicit judgments of bodily strength. In two studies, we demonstrate such a relation for both computer-generated and natural photos of male faces. We find support when aggregating data across participants, when analyzing with hierarchical models, and also when strength and dominance are judged by different raters. Moreover, we identify common predictors that underlie perceptions of both strength and dominance: brow height, eye length, chin length, and the widths of the nose and mouth.
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Affiliation(s)
- Hugo Toscano
- Centro de Investigação e Intervenção Social Instituto Universitário de Lisboa (ISCTE-IUL), Portugal
| | | | - Aaron N. Sell
- School of Criminology and Criminal Justice, Griffith University, Australia
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Hypothetical rankings of prospective husbands for female kin in lowland Nicaragua: consensus analysis indicates high agreement and associations with wealth and hunting skill. EVOL HUM BEHAV 2011. [DOI: 10.1016/j.evolhumbehav.2010.12.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Chisango T, Gwandure C. Delegitimisation of Disliked Political Organisations Through Biased Language and Acronyming. JOURNAL OF PSYCHOLOGY IN AFRICA 2011. [DOI: 10.1080/14330237.2011.10820481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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