1
|
Lv Q, Gu Y, Sun X, Yang M, Li J, Xin M, Han X, Ma G. Aesthetic Improvement of Body Proportion Through Trunk Liposculpture: A Waistline-based Strategy. Aesthet Surg J 2024; 44:NP246-NP253. [PMID: 38048421 DOI: 10.1093/asj/sjad361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 11/17/2023] [Accepted: 11/27/2023] [Indexed: 12/06/2023] Open
Abstract
BACKGROUND Abdominal contouring through liposuction has been practiced for decades. However, few studies have focused on describing the definition and enhancement of the waistline in torso contouring procedures. OBJECTIVES In the present study, the authors proposed a waistline-based strategy for abdominal liposculpture to achieve a better aesthetic outcome and emphasize high overall patient satisfaction. METHODS The data of patients who underwent the waistline-based liposculpture procedure from 2020 to 2023 were retrospectively reviewed. Aesthetic improvement of the central trunk contour was evaluated and analyzed by comparing preoperative and postoperative photogrammetric measurements. Satisfaction with the outcome was assessed with a patient satisfaction questionnaire. RESULTS A total of 70 patients were enrolled in this study. During 6 months of postoperative evaluation, the shape of the central trunk contour improved significantly (both waist concavity and hip convexity increased quantitatively, P < .05), while the position of the waist did not differ significantly postoperatively (P > .05). All patients were satisfied with their postoperative outcomes, including their overall aesthetic appearance, waistline position, and waist-to-hip ratio. There were no intraoperative complications or rare postoperative complications. CONCLUSIONS Waistline-based liposculpture is a simple and effective procedure to improve the aesthetic outcomes of trunk contouring and has highly satisfactory results after long-term follow-up. LEVEL OF EVIDENCE: 5
Collapse
|
2
|
Loos S, De Wil P, Delcarte L, Serefoglu EC, Van Renterghem K, Ward S. The effect of penis size on partner sexual satisfaction: a literature review. Int J Impot Res 2023; 35:519-522. [PMID: 36307732 DOI: 10.1038/s41443-022-00636-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/10/2022] [Accepted: 10/12/2022] [Indexed: 11/09/2022]
Abstract
Larger penis size has been associated with a sign of strength, masculinity, and social standing. Little study has examined the relationship between men's penis size and their partners' sexual satisfaction. The purpose of the present study was to detail and evaluate the effect of penis size on partner sexual satisfaction with a design of narrative literature review. A systematic search of MEDLINE/PubMed was conducted to discover relevant studies on this issue. Currently, available studies show incomplete results between the penis size and partners' sexual satisfaction and are limited by methodological drawbacks, including small sample's size. The link between penis size and the sexual satisfaction of the partner need to be supported by more robust scientific evidence.
Collapse
Affiliation(s)
| | - Peter De Wil
- Department of Urology, Clinique Saint-Jean, Brussels, Belgium
| | - Leslie Delcarte
- Department of Urology, Clinique Saint-Jean, Brussels, Belgium
| | - Ege Can Serefoglu
- Department of Urology, Biruni University, School of Medicine, Istanbul, Turkey
| | | | - Sam Ward
- Department of Urology, Clinique Saint-Jean, Brussels, Belgium.
| |
Collapse
|
3
|
Marković S, Bulut T. Tendencies Toward Supernormality/Subnormality in Generating Attractive and Unattractive Female and Male Avatars: Gender Differences. Arch Sex Behav 2023; 52:2317-2336. [PMID: 36995537 DOI: 10.1007/s10508-023-02575-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 02/18/2023] [Accepted: 02/26/2023] [Indexed: 06/19/2023]
Abstract
In the present study, we investigated the differences in the experience of attractiveness and unattractiveness of human bodies. A total of 101 participants (55 females) were asked to create the most attractive and the most unattractive female and male figures using a computer animation. They performed this task by adjusting the size of six body parts: shoulders, breasts/chest, waist, hips, buttocks, and legs. Analyses indicated that attractive body parts were distributed normally with the peak shifted to moderately supernormal sizes, while unattractive body parts had mostly U-shaped or skewed distributions with extremes in super-supernormal and/or subnormal sizes. Generally, both male and female attractive bodies had prominent "sporty" look: supernormally wide shoulders and long legs. Gender differences showed that men prefer more supernomal masculine and feminine sizes, while women show an ambivalence toward both groups of traits. Principal components analysis revealed gender differences on the multitrait level: males focus on prominent masculine and feminine traits, while women focus on traits that make both male and female bodies more elongated and slender. Gender differences were in line with specific male and female positions in the partner selection process, while a certain tendency toward masculinization of the female body required the inclusion of social factors, such as the influence of the culture of a sporty and fit look.
Collapse
Affiliation(s)
- Slobodan Marković
- Faculty of Philosophy, Laboratory for Experimental Psychology and Department of Psychology, University of Belgrade, Čika Ljubina 18-20, 11000, Belgrade, Serbia.
| | - Tara Bulut
- Faculty of Philosophy, Laboratory for Experimental Psychology and Department of Psychology, University of Belgrade, Čika Ljubina 18-20, 11000, Belgrade, Serbia
| |
Collapse
|
4
|
Nuzzo JL. Narrative Review of Sex Differences in Muscle Strength, Endurance, Activation, Size, Fiber Type, and Strength Training Participation Rates, Preferences, Motivations, Injuries, and Neuromuscular Adaptations. J Strength Cond Res 2023; 37:494-536. [PMID: 36696264 DOI: 10.1519/jsc.0000000000004329] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
ABSTRACT Nuzzo, JL. Narrative review of sex differences in muscle strength, endurance, activation, size, fiber type, and strength training participation rates, preferences, motivations, injuries, and neuromuscular adaptations. J Strength Cond Res 37(2): 494-536, 2023-Biological sex and its relation with exercise participation and sports performance continue to be discussed. Here, the purpose was to inform such discussions by summarizing the literature on sex differences in numerous strength training-related variables and outcomes-muscle strength and endurance, muscle mass and size, muscle fiber type, muscle twitch forces, and voluntary activation; strength training participation rates, motivations, preferences, and practices; and injuries and changes in muscle size and strength with strength training. Male subjects become notably stronger than female subjects around age 15 years. In adults, sex differences in strength are more pronounced in upper-body than lower-body muscles and in concentric than eccentric contractions. Greater male than female strength is not because of higher voluntary activation but to greater muscle mass and type II fiber areas. Men participate in strength training more frequently than women. Men are motivated more by challenge, competition, social recognition, and a desire to increase muscle size and strength. Men also have greater preference for competitive, high-intensity, and upper-body exercise. Women are motivated more by improved attractiveness, muscle "toning," and body mass management. Women have greater preference for supervised and lower-body exercise. Intrasexual competition, mate selection, and the drive for muscularity are likely fundamental causes of exercise behaviors in men and women. Men and women increase muscle size and strength after weeks of strength training, but women experience greater relative strength improvements depending on age and muscle group. Men exhibit higher strength training injury rates. No sex difference exists in strength loss and muscle soreness after muscle-damaging exercise.
Collapse
Affiliation(s)
- James L Nuzzo
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
| |
Collapse
|
5
|
Lin X, Gao H, Wang R, Wu Y. Life history strategies, body surveillance, and online interpersonal sexual objectification experiences on women's body shame. Personality and Individual Differences 2023; 201:111950. [DOI: 10.1016/j.paid.2022.111950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
6
|
Pazhoohi F, Garza R, Kingstone A. The Interacting Effects of Height and Shoulder-to-Hip Ratio on Perceptions of Attractiveness, Masculinity, and Fighting Ability: Experimental Design and Ecological Validity Considerations. Arch Sex Behav 2023; 52:301-314. [PMID: 36074312 DOI: 10.1007/s10508-022-02416-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/27/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
Previous research has shown that men's height and upper body size are both associated with the perception of attractiveness, because they might be cues to men's genetic fitness, fighting ability, and resource holding power. However, the combined effects of men's height and upper body size have not been explored. In this research, across four studies (N = 659 heterosexual women), we systematically explored the perception of men's muscular upper body at different heights on perceptions of attractiveness, masculinity, and fighting ability. Women rated male stimuli with heights ranging from 160 cm (5'3″) to 190 cm (6'3″) and three values of shoulder-to-hip ratio (SHR). In general, results showed that women considered taller men and men with larger SHR as more attractive, masculine, and better in fighting ability. However, a robust interaction between height and SHR was dependent on participants being exposed to variation on both variables and the ecological validity of the stimuli (silhouettes vs. more realistic rendered figures).
Collapse
Affiliation(s)
- Farid Pazhoohi
- Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver, BC, V6T 1Z4, Canada.
| | - Ray Garza
- Department of Psychology and Communication, Texas A&M International University, Laredo, TX, USA
| | - Alan Kingstone
- Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver, BC, V6T 1Z4, Canada
| |
Collapse
|
7
|
Oswald F, Champion A, Pedersen CL. The Influence of Body Shape on Impressions of Sexual Traits. J Sex Res 2022; 59:330-343. [PMID: 33179978 DOI: 10.1080/00224499.2020.1841723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The assumptions people make from body shape can have serious implications for the well-being of the individuals inhabiting such bodies. Fat people are subject to pervasive and resilient social stigma and discrimination, leading to negative mental and physical health outcomes, including negative sexuality-related outcomes. Though previous studies have examined the personality traits attributed to, or the sexual attractiveness of, varying body shapes, no research has asked participants to make attributions of sexual traits to varying body shapes. The purpose of this study was thus to examine sexuality-related trait inferences made from body shapes. Participants (N = 891, 70% women, Mage = 25.28) were randomly assigned to view 5 computer-generated 3-dimensional body models of varying shapes developed using the skinned multi-person linear model. Participants rated their sexual attraction to each body and the degree to which each of 30 traits (10 personality and 20 sexual) applied. Results demonstrated that larger bodies are generally viewed as less sexually attractive. Further, constellations of sexuality traits were predicted reliably by body shape, demonstrating that people hold sexual stereotypes about a diverse range of body shapes. This study provides an initial comprehensive demonstration of the sexuality-specific traits associated with varying body shapes.
Collapse
Affiliation(s)
- Flora Oswald
- Departments of Psychology and Women's, Gender, & Sexuality Studies, Pennsylvania State University
| | | | | |
Collapse
|
8
|
Davis AC, Arnocky S. An Evolutionary Perspective on Appearance Enhancement Behavior. Arch Sex Behav 2022; 51:3-37. [PMID: 33025291 DOI: 10.1007/s10508-020-01745-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 05/12/2020] [Accepted: 05/15/2020] [Indexed: 05/15/2023]
Abstract
Researchers have highlighted numerous sociocultural factors that have been shown to underpin human appearance enhancement practices, including the influence of peers, family, the media, and sexual objectification. Fewer scholars have approached appearance enhancement from an evolutionary perspective or considered how sociocultural factors interact with evolved psychology to produce appearance enhancement behavior. Following others, we argue that evidence from the field of evolutionary psychology can complement existing sociocultural models by yielding unique insight into the historical and cross-cultural ubiquity of competition over aspects of physical appearance to embody what is desired by potential mates. An evolutionary lens can help to make sense of reliable sex and individual differences that impact appearance enhancement, as well as the context-dependent nature of putative adaptations that function to increase physical attractiveness. In the current review, appearance enhancement is described as a self-promotion strategy used to enhance reproductive success by rendering oneself more attractive than rivals to mates, thereby increasing one's mate value. The varied ways in which humans enhance their appearance are described, as well as the divergent tactics used by women and men to augment their appearance, which correspond to the preferences of opposite-sex mates in a heterosexual context. Evolutionarily relevant individual differences and contextual factors that vary predictably with appearance enhancement behavior are also discussed. The complementarity of sociocultural and evolutionary perspectives is emphasized and recommended avenues for future interdisciplinary research are provided for scholars interested in studying appearance enhancement behavior.
Collapse
Affiliation(s)
- Adam C Davis
- Faculty of Education, University of Ottawa, Ottawa, ON, Canada
| | - Steven Arnocky
- Department of Psychology, Nipissing University, North Bay, ON, P1B 8L7, Canada.
| |
Collapse
|
9
|
Dixson BJW. Sexual Selection and the Evolution of Human Appearance Enhancements. Arch Sex Behav 2022; 51:49-55. [PMID: 33721143 DOI: 10.1007/s10508-021-01946-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/04/2021] [Accepted: 02/06/2021] [Indexed: 06/12/2023]
Affiliation(s)
- Barnaby J W Dixson
- School of Health and Behavioural Sciences, University of the Sunshine Coast, Petrie, QLD, Australia.
- School of Psychology, The University of Queensland, St. Lucia, Brisbane, QLD, 4072, Australia.
| |
Collapse
|
10
|
D'Argenio G, Finisguerra A, Urgesi C. Motion and Gender-Typing Features Interact in the Perception of Human Bodies. Front Neurosci 2020; 14:277. [PMID: 32372898 PMCID: PMC7186348 DOI: 10.3389/fnins.2020.00277] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 03/10/2020] [Indexed: 11/13/2022] Open
Abstract
The human body conveys socially relevant information, including a person's gender. Several studies have shown that both shape and motion inform gender judgments of bodies. However, while body shape seems to influence more the judgment of female bodies, body motion seems to play a major role in the judgments of male bodies. Yet, the interdependence of morphologic and dynamic cues in shaping gender judgment and attractiveness evaluation in body perception is still unclear. In two experiments, we investigated how variations of implied motion and shape interact in perceptual and affective judgments of female and male bodies. In Experiment 1, participants were asked to provide ratings for masculinity and femininity of virtual renderings of human bodies with variable gender-typing features and implied motion. We found evidence of a tendency to perceive bodies in static poses as more feminine and bodies in dynamic poses as more masculine. In Experiment 2, participants rated the same pictures for dynamism and pleasantness. We found that male bodies were judged more dynamic than female bodies with the same pose. Also, female bodies were liked more in static than in dynamic poses. A mediation analysis allowed us to further shed light on the relationship between gender-typing features and motion, suggesting that the less is the movement conveyed by a female body, the greater is an observer's sensitivity to its femininity, and this leads to a more positive evaluation of its pleasantness. Our findings hint to an association between stillness and femininity in body perception, which can stem from either the evolutionary meaning of sexual selection and/or the influence of cultural norms.
Collapse
Affiliation(s)
- Giulia D'Argenio
- PhD Program in Neural and Cognitive Sciences, Department of Life Sciences, University of Trieste, Trieste, Italy.,Laboratory of Cognitive Neuroscience, Department of Languages and Literatures, Communication, Education and Society, University of Udine, Udine, Italy
| | | | - Cosimo Urgesi
- Laboratory of Cognitive Neuroscience, Department of Languages and Literatures, Communication, Education and Society, University of Udine, Udine, Italy.,Scientific Institute, IRCCS E. Medea, Pasian di Prato, Udine, Italy
| |
Collapse
|
11
|
Pazhoohi F, Macedo AF, Doyle JF, Arantes J. Waist-to-Hip Ratio as Supernormal Stimuli: Effect of Contrapposto Pose and Viewing Angle. Arch Sex Behav 2020; 49:837-847. [PMID: 31214904 DOI: 10.1007/s10508-019-01486-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 05/31/2019] [Accepted: 06/03/2019] [Indexed: 06/09/2023]
Abstract
In women, the waist-to-hip ratio (WHR) is an indicator of attractiveness, health, youthfulness, and reproductive potential. In the current study, we hypothesized that viewing angle and body postures influence the attractiveness of these forms based on the view dependency of WHR stimuli (vdWHR). Using eye tracking, we quantified the number of fixations and dwell time on 3D images of a female avatar in two different poses (standing and contrapposto) from eight viewing angles incrementing in 45 degrees of rotation. A total of 68 heterosexual individuals (25 men and 43 women) participated in the study. Results showed that the contrapposto pose was perceived as more attractive than the standing pose and that lower vdWHR sides of the stimuli attracted more first fixation, total fixations, and dwell time. Overall, the results supported that WHR is view-dependent and vdWHRs lower than optimal WHRs are supernormal stimuli that may generate peak shifts in responding. Results are discussed in terms of the attractiveness of women's movements (gaits and dance) and augmented artistic presentations.
Collapse
Affiliation(s)
- Farid Pazhoohi
- Department of Basic Psychology, School of Psychology, University of Minho, 4710 - 057, Braga, Portugal.
| | - Antonio F Macedo
- Vision Rehabilitation Laboratory, Department and Centre of Physics, University of Minho, Braga, Portugal
- Department of Medicine and Optometry, Linnaeus University, Kalmar, Sweden
| | | | - Joana Arantes
- Department of Basic Psychology, School of Psychology, University of Minho, 4710 - 057, Braga, Portugal
| |
Collapse
|
12
|
Pazhoohi F, Arantes J, Kingstone A, Pinal D. Waist to hip ratio and breast size modulate the processing of female body silhouettes: An EEG study. EVOL HUM BEHAV 2020; 41:150-69. [DOI: 10.1016/j.evolhumbehav.2020.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
13
|
Clarkson TR, Sidari MJ, Sains R, Alexander M, Harrison M, Mefodeva V, Pearson S, Lee AJ, Dixson BJW. A multivariate analysis of women's mating strategies and sexual selection on men's facial morphology. R Soc Open Sci 2020; 7:191209. [PMID: 32218951 PMCID: PMC7029899 DOI: 10.1098/rsos.191209] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 11/26/2019] [Indexed: 06/01/2023]
Abstract
The strength and direction of sexual selection via female choice on masculine facial traits in men is a paradox in human mate choice research. While masculinity may communicate benefits to women and offspring directly (i.e. resources) or indirectly (i.e. health), masculine men may be costly as long-term partners owing to lower paternal investment. Mating strategy theory suggests women's preferences for masculine traits are strongest when the costs associated with masculinity are reduced. This study takes a multivariate approach to testing whether women's mate preferences are context-dependent. Women (n = 919) rated attractiveness when considering long-term and short-term relationships for male faces varying in beardedness (clean-shaven and full beards) and facial masculinity (30% and 60% feminized, unmanipulated, 30% and 60% masculinized). Participants then completed scales measuring pathogen, sexual and moral disgust, disgust towards ectoparasites, reproductive ambition, self-perceived mate value and the facial hair in partners and fathers. In contrast to past research, we found no associations between pathogen disgust, self-perceived mate value or reproductive ambition and facial masculinity preferences. However, we found a significant positive association between moral disgust and preferences for masculine faces and bearded faces. Preferences for beards were lower among women with higher ectoparasite disgust, providing evidence for ectoparasite avoidance hypothesis. However, women reporting higher pathogen disgust gave higher attractiveness ratings for bearded faces than women reporting lower pathogen disgust, providing support for parasite-stress theories of sexual selection and mate choice. Preferences for beards were also highest among single and married women with the strongest reproductive ambition. Overall, our results reflect mixed associations between individual differences in mating strategies and women's mate preferences for masculine facial traits.
Collapse
Affiliation(s)
- Tessa R. Clarkson
- School of Psychology, University of Queensland, Brisbane, Queensland, Australia
| | - Morgan J. Sidari
- School of Psychology, University of Queensland, Brisbane, Queensland, Australia
| | - Rosanna Sains
- School of Psychology, University of Queensland, Brisbane, Queensland, Australia
| | - Meredith Alexander
- School of Psychology, University of Queensland, Brisbane, Queensland, Australia
| | - Melissa Harrison
- School of Psychology, University of Queensland, Brisbane, Queensland, Australia
| | - Valeriya Mefodeva
- School of Psychology, University of Queensland, Brisbane, Queensland, Australia
| | - Samuel Pearson
- School of Psychology, University of Queensland, Brisbane, Queensland, Australia
| | - Anthony J. Lee
- Division of Psychology, University of Stirling, Stirling, Scotland, UK
| | | |
Collapse
|
14
|
Pazhoohi F, Garza R, Doyle JF, Macedo AF, Arantes J. Sex Differences for Preferences of Shoulder to Hip Ratio in Men and Women: an Eye Tracking Study. Evolutionary Psychological Science 2019; 5:405-15. [DOI: 10.1007/s40806-019-00198-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
15
|
Dixson BJW, Rantala MJ, Brooks RC. Cross-Cultural Variation in women’s Preferences for men’s Body Hair. Adaptive Human Behavior and Physiology 2019; 5:131-47. [DOI: 10.1007/s40750-019-0107-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
16
|
Del Zotto M, Framorando D, Pegna AJ. Waist-to-hip ratio affects female body attractiveness and modulates early brain responses. Eur J Neurosci 2018; 52:4490-4498. [PMID: 30347463 DOI: 10.1111/ejn.14209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 08/24/2018] [Accepted: 09/24/2018] [Indexed: 11/28/2022]
Abstract
This investigation examined the electrophysiological response underlying the visual processing of waist-to-hip ratio (WHR) in female bodies, a characteristic known to affect perceived attractiveness. WHRs of female bodies were artificially adjusted to values of 0.6, 0.7, 0.8 or 0.9. Behavioural ratings of attractiveness of the bodies revealed a preference for WHRs of 0.7 in the overall group of participants, which included both male and female heterosexual individuals. Event-related potentials (ERPs) were then recorded while participants performed a selective attention task involving photographs of female models and scrambled images. Results showed that the P1 (80-120 ms) and N1 (130-170 ms) components situated over posterior brain regions were the earliest components to be modulated by attention and bodies. Interestingly, the vertex-positive potential, occurring between 120-180 ms, produced a greater positivity for WHRs of 0.7 compared to the other ratios. However, this increase was only observed when the body stimuli were attended, while no effect was observed for unattended bodies. These findings provide evidence of an early brain sensitivity to visual attributes that constitute secondary sexual characteristics. Although they are relatively discrete from the point of view of their physical quality, these signs possess strong behavioural significance, producing greater reported attractiveness, likely by conveying the biological meaning that signals good health and greater reproductive success. Our results therefore reveal that attributes associated with sexual attractiveness in female bodies are processed rapidly in the stream of visual processing.
Collapse
Affiliation(s)
- Marzia Del Zotto
- Division of Medical Information Sciences, Department of Radiology and Medical Informatics, Faculty of Medicine, University of Geneva, Geneva, CH-1211, Switzerland.,Faculty of Psychology and Educational Sciences, University of Geneva, CH-1211, Geneva, Switzerland
| | - David Framorando
- Faculty of Psychology and Educational Sciences, University of Geneva, CH-1211, Geneva, Switzerland
| | - Alan J Pegna
- Faculty of Psychology and Educational Sciences, University of Geneva, CH-1211, Geneva, Switzerland.,School of Psychology, The University of Queensland, Brisbane, Qld, 4072, Australia
| |
Collapse
|
17
|
Abstract
The assignment of gender to robots is a debatable topic. Subtle aspects related to gender, in a robot’s appearance, may create biased expectations of the robot’s abilities and influence user acceptance. The present research is a cross-cultural study involving more than 150 participants to investigate the perception of gender in robot design by manipulating body proportions. We are focusing specifically on the contrast between two extremely different cultures: Peruvian and Japanese. From the survey based on stimuli varying in the proportion between chest, waist, and hips, the results indicate the importance of chest-to-hip ratio and waist-to-hip ratio in the attribution of gender to robots.
Collapse
|
18
|
Del Zotto M, Pegna AJ. Electrophysiological evidence of perceived sexual attractiveness for human female bodies varying in waist-to-hip ratio. Cogn Affect Behav Neurosci 2017; 17:577-91. [PMID: 28315140 DOI: 10.3758/s13415-017-0498-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The dynamics of brain activation reflecting attractiveness in humans are unclear. Among the different features affecting attractiveness of the female body, the waist-to-hip ratio (WHR) is considered to be crucial. To date, however, no event-related potential (ERP) study has addressed the question of its associated pattern of brain activation. We carried out two different experiments: (a) a behavioural study, to judge the level of attractiveness of female realistic models depicting 4 different WHRs (0.6, 0.7, 0.8, 0.9) with and without clothes; (b) an EEG paradigm, to record brain activity while participants (heterosexual men and women) viewed these same models. Behavioural results showed that WHRs of 0.7 were considered more attractive than the others. ERP analyses revealed a different pattern of activation for male and female viewers. The 0.7 ratio elicited greater positivity at the P1 level in male viewers but not females. Naked bodies increased the N190 in both groups and peaked earlier for the 0.7 ratio in the male viewers. Finally, the late positive component (LPC) was found to be greater in male than in female viewers and was globally more marked for naked bodies as well as WHRs of 0.7 in both groups of viewers. These results provide the first electrophysiological evidence of specific time periods linked to the processing of a body feature denoting attractiveness and therefore playing a role in mate choice.
Collapse
|
19
|
Štěrbová Z, Třebický V, Havlíček J, Tureček P, Varella MAC, Valentova JV. Father's physique influences mate preferences but not the actual choice of male somatotype in heterosexual women and homosexual men. EVOL HUM BEHAV 2018; 39:130-8. [DOI: 10.1016/j.evolhumbehav.2017.09.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
20
|
Kleisner K, Kočnar T, Tureček P, Stella D, Akoko RM, Třebický V, Havlíček J. African and European perception of African female attractiveness. EVOL HUM BEHAV 2017. [DOI: 10.1016/j.evolhumbehav.2017.07.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
21
|
Dixson BJW, Little AC, Dixson HGW, Brooks RC. Do prevailing environmental factors influence human preferences for facial morphology? Behav Ecol 2017. [DOI: 10.1093/beheco/arx067] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
|
22
|
Xu Y, Rahman Q, Zheng Y. Gender-Specificity in Viewing Time Among Heterosexual Women. Arch Sex Behav 2017; 46:1361-1374. [PMID: 27511206 DOI: 10.1007/s10508-016-0795-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 06/03/2016] [Accepted: 06/15/2016] [Indexed: 05/16/2023]
Abstract
Measures of sexual interest tend to be more gender-specific in heterosexual men than in heterosexual women. Cognitive measures, such as viewing time to attractive stimuli, may also show similar patterns of gender-specificity or nonspecificity among men and women and thus serve as useful adjuncts to more direct measures of sexual interest. The objectives of the present research were to determine the extent of gender-specificity in women's viewing times for female pictures (varying in their perceived physical attractiveness) and explore the influence of social comparison of physical appearance on these patterns of responses. In Study 1, we recorded only women's viewing times for pictures of both genders, measured self-reported menstrual cycle phase, and manipulated the waist-to-hip ratio of the women in the female pictures. In Study 2, we recorded women's and men's viewing times, self-reported sexual attraction to pictures of males and females, and physical appearance social comparison. Study 1 found that heterosexual women's viewing time toward female pictures was not associated with manipulation of the perceived attractiveness of those pictures. Study 2 found that heterosexual men were more gender-specific than heterosexual women in their viewing time patterns. We also found that reported sexual attraction and physical appearance social comparison were associated with heterosexual women's viewing times for female pictures, while heterosexual men's viewing times were associated with sexual attraction only. Our results are discussed in relation to the utility of viewing time as an indicator of visual attention toward attractive or sexually appealing visual stimuli.
Collapse
Affiliation(s)
- Yin Xu
- Key Laboratory of Cognition and Personality, Southwest University, Chongqing, China
| | - Qazi Rahman
- Department of Psychology, Institute of Psychiatry, King's College London, London, UK
| | - Yong Zheng
- Key Laboratory of Cognition and Personality, Southwest University, Chongqing, China.
- Faculty of Psychology, Southwest University, No. 2 Tiansheng, Beibei, Chongqing, 400715, China.
| |
Collapse
|
23
|
McIntosh TL, Lee AJ, Sidari MJ, Stower RE, Sherlock JM, Dixson BJW. Microbes and masculinity: Does exposure to pathogenic cues alter women's preferences for male facial masculinity and beardedness? PLoS One 2017; 12:e0178206. [PMID: 28594843 PMCID: PMC5464545 DOI: 10.1371/journal.pone.0178206] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 05/08/2017] [Indexed: 11/18/2022] Open
Abstract
Women's preferences for men's androgen dependent secondary sexual traits are proposed to be phenotypically plastic in response to exposure to pathogens and pathogen disgust. While previous studies report that masculinity in facial shape is more attractive to women who have recently been exposed to pathogenic cues and who are high in self-reported pathogen disgust, facial hair may reduce male attractiveness under conditions of high pathogens as beards are a possible breeding ground for disease carrying ectoparasites. In the present study, we test whether women's preferences for beardedness and facial masculinity vary due to exposure to different pathogenic cues. Participants (N = 688, mean age + 1SD = 31.94 years, SD = 6.69, range = 18-67) rated the attractiveness of facial composite stimuli of men when they were clean-shaven or fully bearded. These stimuli were also manipulated in order to vary sexual dimorphism by ±50%. Ratings were conducted before and after exposure to one of four experimental treatments in which participants were primed to either high pathogens (e.g. infected cuts), ectoparasites (e.g. body lice), a mixture of pathogens and ectoparasites, or a control condition (e.g. innocuous liquids). Participants then completed the three-domain disgust scale measuring attitudes to moral, sexual and pathogen disgust. We predicted that women would prefer facial masculinity following exposure to pathogenic cues, but would show reduced preferences for facial hair following exposure to ectoparasites. Women preferred full beards over clean-shaven faces and masculinised over feminised faces. However, none of the experimental treatments influenced the direction of preferences for facial masculinity or beardedness. We also found no association between women's self-reported pathogen disgust and their preferences for facial masculinity. However, there was a weak positive association between moral disgust scores and preferences for facial masculinity, which might reflect conservatism and preferences for gender typicality in faces. Women's preferences for beards were positively associated with their pathogen disgust, which runs contrary to our predictions and may reflect preferences for high quality individuals who can withstand any costs of beardedness, although further replications are necessary before firm conclusions can be made. We conclude that there is little support for pathogenic exposure being a mechanism that underpins women's directional preferences for masculine traits.
Collapse
Affiliation(s)
- Toneya L McIntosh
- School of Psychology, University of Queensland, Brisbane, Queensland, Australia
| | - Anthony J Lee
- Institute of Neuroscience and Psychology, University of Glasgow, Scotland, United Kingdom
| | - Morgan J Sidari
- School of Psychology, University of Queensland, Brisbane, Queensland, Australia
| | - Rebecca E Stower
- School of Psychology, University of Queensland, Brisbane, Queensland, Australia
| | - James M Sherlock
- School of Psychology, University of Queensland, Brisbane, Queensland, Australia
| | - Barnaby J W Dixson
- School of Psychology, University of Queensland, Brisbane, Queensland, Australia
| |
Collapse
|
24
|
Abstract
Hormones orchestrate and coordinate human female sexual development, sexuality, and reproduction in relation to three types of phenotypic changes: life history transitions such as puberty and childbirth, responses to contextual factors such as caloric intake and stress, and cyclical patterns such as the ovulatory cycle. Here, we review the endocrinology underlying women's reproductive phenotypes, including sexual orientation and gender identity, mate preferences, competition for mates, sex drive, and maternal behavior. We highlight distinctive aspects of women's sexuality such as the possession of sexual ornaments, relatively cryptic fertile windows, extended sexual behavior across the ovulatory cycle, and a period of midlife reproductive senescence-and we focus on how hormonal mechanisms were shaped by selection to produce adaptive outcomes. We conclude with suggestions for future research to elucidate how hormonal mechanisms subserve women's reproductive phenotypes.
Collapse
Affiliation(s)
- Natalie V Motta-Mena
- Department of Psychology, Pennsylvania State University, University Park, PA 16802, United States
| | - David A Puts
- Department of Anthropology, Center for Brain, Behavior, and Cognition, Center for Human Evolution and Diversity, Pennsylvania State University, University Park, PA 16802¸ United States.
| |
Collapse
|
25
|
Valentova JV, Varella MAC, Bártová K, Štěrbová Z, Dixson BJW. Mate preferences and choices for facial and body hair in heterosexual women and homosexual men: influence of sex, population, homogamy, and imprinting-like effect. EVOL HUM BEHAV 2017. [DOI: 10.1016/j.evolhumbehav.2016.10.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
26
|
Dixson BJW, Rantala MJ. The Role of Facial and Body Hair Distribution in Women's Judgments of Men's Sexual Attractiveness. Arch Sex Behav 2016; 45:877-89. [PMID: 26292838 DOI: 10.1007/s10508-015-0588-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2014] [Revised: 01/27/2015] [Accepted: 04/18/2015] [Indexed: 05/12/2023]
Abstract
Facial and body hair are some of the most visually conspicuous and sexually dimorphic of all men's secondary sexual traits. Both are androgen dependent, requiring the conversion of testosterone into dihydrotestosterone via the enzyme 5α reductase 2 for their expression. While previous studies on the attractiveness of facial and body hair are equivocal, none have accounted as to how natural variation in their distribution may influence male sexual attractiveness. In the present study, we quantified men's facial and body hair distribution as either very light, light, medium, or heavy using natural photographs. We also tested whether women's fertility influenced their preferences for beards and body hair by comparing preferences among heterosexual women grouped according their fertility (high fertility, low fertility, and contraceptive use). Results showed that men with more evenly and continuously distributed facial hair from the lower jaw connecting to the mustache and covering the cheeks were judged as more sexually attractive than individuals with more patchy facial hair. Men with body hair were less attractive than when clean shaven, with the exception of images depicting some hair around the areolae, pectoral region, and the sternum that were significantly more attractive than clean-shaven bodies. However, there was no effect of fertility on women's preferences for men's beard or body hair distribution. These results suggest that the distribution of facial and body hair influences male attractiveness to women, possibly as an indication of masculine development and the synthesis of testosterone into dihydrotestosterone via 5α reductase.
Collapse
Affiliation(s)
- Barnaby J W Dixson
- School of Psychology, The University of Queensland, St. Lucia, Brisbane, QLD, 4072, Australia.
- Evolution and Ecology Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, Kensington, Sydney, Australia.
| | - Markus J Rantala
- Turku Brain and Mind Center, Section of Department of Biology, University of Turku, Turku, Finland
| |
Collapse
|
27
|
Lassek WD, Gaulin SJC. What Makes Jessica Rabbit Sexy? Contrasting Roles of Waist and Hip Size. Evol Psychol 2016; 14:1474704916643459. [PMCID: PMC10481102 DOI: 10.1177/1474704916643459] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 02/14/2016] [Indexed: 09/09/2023] Open
Abstract
While waist/hip ratio (WHR) and body mass index (BMI) have been the most studied putative determinants of female bodily attractiveness, BMI is not directly observable, and few studies have considered the independent roles of waist and hip size. The range of attractiveness in many studies is also quite limited, with none of the stimuli rated as highly attractive. To explore the relationships of these anthropometric parameters with attractiveness across a much broader spectrum of attractiveness, we employ three quite different samples: a large sample of college women, a larger sample of Playboy Playmates of the Month than that has been previously examined, and a large pool of imaginary women (e.g., cartoon, video game, graphic novel characters) chosen as the “most attractive” by university students. Within-sample and between-sample comparisons agree in indicating that waist size is the key determinant of female bodily attractiveness and accounts for the relationship of both BMI and WHR with attractiveness, with between-sample effect sizes of 2.4–3.2. In contrast, hip size is much more similar across attractiveness groups and is unrelated to attractiveness when BMI or waist size is controlled.
Collapse
Affiliation(s)
- William D. Lassek
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Steven J. C. Gaulin
- Department of Anthropology, University of California at Santa Barbara, Santa Barbara, CA, USA
| |
Collapse
|
28
|
Zheng L, Zhang J, Zheng Y. Relationships between pathogen disgust sensitivity and preference for male facial masculinity in gay men in China. Personality and Individual Differences 2016. [DOI: 10.1016/j.paid.2015.12.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
29
|
Abstract
New trends toward later and less marriage are emerging in post-reform China. Previous research has examined the changing individual-level socioeconomic and demographic characteristics shaping marriage entry in Chinese adults. Employing a cultural model known as developmental idealism (DI), this study argues that a new worldview specifying an ideal body type has become popular in the West and that this new worldview has been exported to China. This new part of the DI package is likely stratified by gender, has a stronger impact on women than on men, and has likely penetrated urban areas more than rural areas. Drawing on the 1991-2009 longitudinal data from the China Health and Nutrition Survey, this study employs discrete-time logit models to estimate the relationships between various body types and transition to first marriage in Chinese young adults 18-30 years old. Body weight status and body shape are measured by body mass index (BMI) and waist-to-hip ratio (WHR), respectively, and further divided into categories of underweight, normal, and obese. Regression results indicate that larger values of BMI and WHR were associated with delayed entry into first marriage in urban women, whereas being overweight or obese was associated with accelerated transition to first marriage in rural men. Not only were these associations statistically significant, but their strengths were substantively remarkable. Findings from this study suggest that both body weight and body shape have important implications for marital success, independent of individual-level socioeconomic and demographic characteristics, and contribute to evolving gender and rural-urban disparities, as China is undergoing a rapid nutrition transition.
Collapse
Affiliation(s)
- Hongwei Xu
- Institute for Social Research, University of Michigan, 426 Thompson St. ISR 2459, Ann Arbor, MI 48106-1248, ,
| |
Collapse
|
30
|
Prause N, Park J, Leung S, Miller G. Women's Preferences for Penis Size: A New Research Method Using Selection among 3D Models. PLoS One 2015; 10:e0133079. [PMID: 26332467 PMCID: PMC4558040 DOI: 10.1371/journal.pone.0133079] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 06/22/2015] [Indexed: 11/18/2022] Open
Abstract
Women's preferences for penis size may affect men's comfort with their own bodies and may have implications for sexual health. Studies of women's penis size preferences typically have relied on their abstract ratings or selecting amongst 2D, flaccid images. This study used haptic stimuli to allow assessment of women's size recall accuracy for the first time, as well as examine their preferences for erect penis sizes in different relationship contexts. Women (N = 75) selected amongst 33, 3D models. Women recalled model size accurately using this method, although they made more errors with respect to penis length than circumference. Women preferred a penis of slightly larger circumference and length for one-time (length = 6.4 inches/16.3 cm, circumference = 5.0 inches/12.7 cm) versus long-term (length = 6.3 inches/16.0 cm, circumference = 4.8 inches/12.2 cm) sexual partners. These first estimates of erect penis size preferences using 3D models suggest women accurately recall size and prefer penises only slightly larger than average.
Collapse
Affiliation(s)
- Nicole Prause
- Department of Psychiatry, University of California Los Angeles, Los Angeles, California, United States of America
- * E-mail:
| | - Jaymie Park
- Department of Psychiatry, University of California Los Angeles, Los Angeles, California, United States of America
| | - Shannon Leung
- Department of Psychiatry, University of California Los Angeles, Los Angeles, California, United States of America
| | - Geoffrey Miller
- Department of Psychology, University of New Mexico; Albuquerque, New Mexico, United States of America
| |
Collapse
|
31
|
Brooks RC, Shelly JP, Jordan LA, J.w. Dixson B. The multivariate evolution of female body shape in an artificial digital ecosystem. EVOL HUM BEHAV 2015; 36:351-8. [DOI: 10.1016/j.evolhumbehav.2015.02.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
32
|
Wang G, Djafarian K, Egedigwe CA, El Hamdouchi A, Ojiambo R, Ramuth H, Wallner-Liebmann SJ, Lackner S, Diouf A, Sauciuvenaite J, Hambly C, Vaanholt LM, Faries MD, Speakman JR. The relationship of female physical attractiveness to body fatness. PeerJ 2015; 3:e1155. [PMID: 26336638 PMCID: PMC4556148 DOI: 10.7717/peerj.1155] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 07/14/2015] [Indexed: 01/25/2023] Open
Abstract
Aspects of the female body may be attractive because they signal evolutionary fitness. Greater body fatness might reflect greater potential to survive famines, but individuals carrying larger fat stores may have poor health and lower fertility in non-famine conditions. A mathematical statistical model using epidemiological data linking fatness to fitness traits, predicted a peaked relationship between fatness and attractiveness (maximum at body mass index (BMI) = 22.8 to 24.8 depending on ethnicity and assumptions). Participants from three Caucasian populations (Austria, Lithuania and the UK), three Asian populations (China, Iran and Mauritius) and four African populations (Kenya, Morocco, Nigeria and Senegal) rated attractiveness of a series of female images varying in fatness (BMI) and waist to hip ratio (WHR). There was an inverse linear relationship between physical attractiveness and body fatness or BMI in all populations. Lower body fat was more attractive, down to at least BMI = 19. There was no peak in the relationship over the range we studied in any population. WHR was a significant independent but less important factor, which was more important (greater r (2)) in African populations. Predictions based on the fitness model were not supported. Raters appeared to use body fat percentage (BF%) and BMI as markers of age. The covariance of BF% and BMI with age indicates that the role of body fatness alone, as a marker of attractiveness, has been overestimated.
Collapse
Affiliation(s)
- Guanlin Wang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Kurosh Djafarian
- Department of Clinical Nutrition, Tehran University of Medical Sciences, Tehran, Iran
| | - Chima A. Egedigwe
- Department of Biochemistry, Michael Okpara University of Agriculture, Umuahia, Abia State, Nigeria
| | - Asmaa El Hamdouchi
- CNESTEN, Unité Mixte de Recherche Nutrition et Alimentation, CNESTEN-Université Ibn Tofail, Rabat, Morocco
| | - Robert Ojiambo
- College of Health Science, School of Medicine, Medical Physiology Department, Moi University, Eldoret, Kenya
| | - Harris Ramuth
- Biochemistry Department, Central health Laboratory services, Ministry of Health and Quality of Life, Mauritius
| | | | - Sonja Lackner
- Center of Molecular Medicine, Institute of Pathophysiology and Immunology, Medical University Graz, Graz, Austria
| | - Adama Diouf
- Laboratoire de Nutrition, Département de Biologie Animale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Justina Sauciuvenaite
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, UK
| | - Catherine Hambly
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, UK
| | - Lobke M. Vaanholt
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, UK
| | - Mark D. Faries
- Stephen F. Austin State University, Nacogdoches, TX, USA
| | - John R. Speakman
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, UK
| |
Collapse
|
33
|
Zheng L, Zheng Y. Correlated Preferences for Male Facial Masculinity and Partner Traits in Gay and Bisexual Men in China. Arch Sex Behav 2015; 44:1423-1430. [PMID: 25331614 DOI: 10.1007/s10508-014-0407-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 04/18/2013] [Accepted: 04/20/2014] [Indexed: 06/04/2023]
Abstract
Previous studies have documented the correlation between preferences for male facial masculinity and perceived masculinity: women who rate their male partner as more masculine tend to prefer more masculine faces. Men's self-rated masculinity predicts their female partner's preference for masculinity. This study examined the association between other trait preferences and preference for male facial masculinity among 556 gay and bisexual men across multiple cities in China. Participants were asked to choose the three most important traits in a romantic partner from a list of 23 traits. Each participant was then asked to choose a preferred face in each of 10 pairs of male faces presented sequentially, with each pair consisting of a masculinized and feminized version of the same base face. The results indicated that preferences for health and status-related traits were correlated with preferences for male facial masculinity in gay and bisexual men in China; individuals who were more health- or status-oriented in their preferences for a romantic partner preferred more masculine male faces than individuals with lower levels of these orientations. The findings have implications for the correlated preferences for facial masculinity and health- and status-related traits and may be related to perceived health and dominance/aggression of masculine faces based on a sample of non-Western gay and bisexual men.
Collapse
Affiliation(s)
- Lijun Zheng
- Key Laboratory of Cognition and Personality (Southwest University), Ministry of Education, Chongqing, China
| | | |
Collapse
|
34
|
Machard A, Jomier M, Hottelart D, Vié K. Identification of new morphological differences between Chinese and Caucasian faces and influence of BMI on these characteristics. Skin Res Technol 2015; 22:137-47. [PMID: 26075836 DOI: 10.1111/srt.12240] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2015] [Indexed: 11/30/2022]
Abstract
BACKGROUND Concepts of beauty are more and more globalised leading to the homogenisation of the physical appearance. It is therefore important to identify morphological characteristics of ethnic groups. We compare faces from Chinese and Caucasian women, identify morphological differences that were not documented yet and study the influence of BMI on these differences. METHODS The study was carried on groups of 60 women: a Chinese and a Caucasian group. Both included two equal sub-groups: normal BMI and higher BMI. Face widths were measured from individual pictures and from reconstructed average faces obtained using a new reconstruction algorithm. Cheek/chin and neck/chin angles were determined from individual pictures. Topography of the cheekbone and temple face was determined by fringe projection technique. Ultrasound analysis allows measurements of hypodermis thickness. RESULTS Our innovative average face reconstruction algorithm produced images of a yet unequalled quality with width characteristics similar to those of individual pictures. Analysis shows that faces of Chinese women are larger and rounder. They present other differences that were so far unidentified. Finally, overweight impacts differently Chinese and Caucasian women faces and has greater influence on Chinese women faces.
Collapse
Affiliation(s)
- A Machard
- Centre de Recherche Clarins, Pontoise, France
| | - M Jomier
- Newtone Technologies, Lyon, France
| | - D Hottelart
- Centre de Recherche Clarins, Pontoise, France
| | - K Vié
- Centre de Recherche Clarins, Pontoise, France
| |
Collapse
|
35
|
Abstract
The ratio between the body circumference at the waist and the hips (or WHR) is a secondary sexual trait that is unique to humans and is well known to influence men’s mate preferences. Because a woman's WHR also provides information about her age, health and fertility, men's preference concerning this physical feature may possibly be a cognitive adaptation selected in the human lineage. However, it is unclear whether the preferred WHR in western countries reflects a universal ideal, as geographic variation in non-western areas has been found, and discordances about its temporal consistency remain in the literature. We analyzed the WHR of women considered as ideally beautiful who were depicted in western artworks from 500 BCE to the present. These vestiges of the past feminine ideal were then compared to more recent symbols of beauty: Playboy models and winners of several Miss pageants from 1920 to 2014. We found that the ideal WHR has changed over time in western societies: it was constant during almost a millennium in antiquity (from 500 BCE to 400 CE) and has decreased from the 15th century to the present. Then, based on Playboy models and Miss pageants winners, this decrease appears to slow down or even reverse during the second half of the 20th century. The universality of an ideal WHR is thus challenged, and historical changes in western societies could have caused these variations in men’s preferences. The potential adaptive explanations for these results are discussed.
Collapse
Affiliation(s)
- Jeanne Bovet
- Institute of Evolutionary Sciences, University of Montpellier, CNRS, IRD, EPHE, CC 065, Place Eugène Bataillon, Montpellier, France
| | - Michel Raymond
- Institute of Evolutionary Sciences, University of Montpellier, CNRS, IRD, EPHE, CC 065, Place Eugène Bataillon, Montpellier, France
- * E-mail:
| |
Collapse
|
36
|
Amos N, McCabe MP. Conceptualizing and measuring perceptions of sexual attractiveness: Are there differences across gender and sexual orientation? Personality and Individual Differences 2015. [DOI: 10.1016/j.paid.2014.11.057] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
37
|
|
38
|
Basow SA, O'Neil K. Men's body depilation: an exploratory study of United States college students' preferences, attitudes, and practices. Body Image 2014; 11:409-17. [PMID: 25057767 DOI: 10.1016/j.bodyim.2014.06.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 06/27/2014] [Accepted: 06/30/2014] [Indexed: 10/25/2022]
Abstract
Young men in Western cultures frequently engage in body depilation practices, but little is known regarding how such bodies are perceived. This exploratory study asked United States college students (N=238) to view six pictures of the same male body with different amounts of visible body hair and to indicate which body was most sexually attractive to themselves, to most men, and to most women. Both men and women chose a relatively hairless male body as the most sexually attractive. Women, however, thought men would choose a hairier body than men actually did. Most of the men reduced or removed body hair, especially from the pubic area. Questionnaire responses indicated that men and women had similar attitudes toward men's body hair, with both hair reduction and hair retention being socially acceptable. Men's body depilation, while still optional, may be becoming normative, at least among United States college students.
Collapse
Affiliation(s)
- Susan A Basow
- Lafayette College, Easton, Pennsylvania, United States.
| | | |
Collapse
|
39
|
Chan CF, Huang CC, Lee MY, Lin YS. Fermented broth in tyrosinase- and melanogenesis inhibition. Molecules 2014; 19:13122-35. [PMID: 25255749 DOI: 10.3390/molecules190913122] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 08/21/2014] [Accepted: 08/21/2014] [Indexed: 01/16/2023] Open
Abstract
Fermented broth has a long history of applications in the food, pharmaceutical and cosmetic industries. Recently, the use of fermented broth in skin care products is in ascendance. This review investigates the efficacy of fermented broth in inhibiting tyrosinase and melanogenesis. Possible active ingredients and hypopigmentation mechanisms of fermented broth are discussed, and potential applications of fermented broth in the cosmetic industry are also addressed.
Collapse
|
40
|
Lipowicz A. Some evidence for health-related marriage selection. Am J Hum Biol 2014; 26:747-52. [PMID: 25065487 DOI: 10.1002/ajhb.22588] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 06/25/2014] [Accepted: 07/05/2014] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVES Married people live longer and are healthier than unmarried people. This can be explained in terms of marriage protection and marriage selection. The aim of the present study was to examine the direct effect of marriage selection on health status. METHODS Data were collected from the archives of the Lower Silesian Medical Center (DOLMED) in Wrocław, Poland. The sample consisted of 2,265 adult (never married or currently married) men. Subjects were assigned to categories for selected variables, including age, level of education, military category upon conscription, height, hearing acuity, and visual acuity. Military category, objective data gathered upon military conscription at age 18, was used to assess initial health status. To identify any relationships between marital status and health status, generalized linear models with binomially distributed dependent variable were used. RESULTS The never-married subjects were more likely to have been assigned to lower military categories, which indicates that their health status at age 18 was inferior to those conscripts who would later marry. Hearing acuity and visual acuity were generally worse in never-married subjects than in married subjects. Never-married subjects were also more likely to be short and less likely to be tall. CONCLUSIONS The results provide evidence for direct health-related marriage selection in men between 25 and 60 years of age. Poor health status reduces the likelihood of marriage.
Collapse
Affiliation(s)
- Anna Lipowicz
- Polish Academy of Sciences, Unit of Anthropology, Ul. Podwale 75, 50-449, Wroclaw, Poland
| |
Collapse
|
41
|
Coy AE, Green JD, Price ME. Why is low waist-to-chest ratio attractive in males? The mediating roles of perceived dominance, fitness, and protection ability. Body Image 2014; 11:282-9. [PMID: 24958664 DOI: 10.1016/j.bodyim.2014.04.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 04/06/2014] [Accepted: 04/06/2014] [Indexed: 10/25/2022]
Abstract
Past research suggests that a lower waist-to-chest ratio (WCR) in men (i.e., narrower waist and broader chest) is viewed as attractive by women. However, little work has directly examined why low WCRs are preferred. The current work merged insights from theory and past research to develop a model examining perceived dominance, fitness, and protection ability as mediators of to WCR-attractiveness relationship. These mediators and their link to both short-term (sexual) and long-term (relational) attractiveness were simultaneously tested by having 151 women rate one of 15 avatars, created from 3D body scans. Men with lower WCR were perceived as more physically dominant, physically fit, and better able to protect loved ones; these characteristics differentially mediated the effect of WCR on short-term, long-term, and general attractiveness ratings. Greater understanding of the judgments women form regarding WCR may yield insights into motivations by men to manipulate their body image.
Collapse
Affiliation(s)
- Anthony E Coy
- Virginia Commonwealth University, Richmond, Virginia, United States.
| | - Jeffrey D Green
- Virginia Commonwealth University, Richmond, Virginia, United States
| | | |
Collapse
|
42
|
Abstract
Esthetic judgments are surely subjective, but as surely, that does not preclude them being studied objectively through rigorous scientific methods. The factual basis of a science of esthetics is not to settle whether some person or image is "objectively beautiful" but rather to determine whether some representative set or sets of individuals judge or experience him/her/it as beautiful or unattractive. The aim of this paper is to review the definitional, theoretical and methodological aspects pertaining to the perception of facial/dental attractiveness by a group of representative individuals. The first part lays down the basic principles of the perception of facial/dental attractiveness: the perception involves a jury, a field of investigation and a test providing quantitative data; the following general determinants of beauty perception are reviewed: the average morphology, the judge's cultural background, the numerology, the judge's ethnical origin. Indirect determinants are the dentition, the osseous architecture and the muscular envelope. Some disruptive factors might alter the judges' facial perception. They might be qualified as either peripheral to the face or psycho-social factors. Peripheral factors include hair style and color, skin hue, wrinkles, lips color... Psycho-social factors cover the personality of the subject being evaluated, his/her intelligence or behavior. The second part deals specifically with the methodology used to determine facial attractiveness and to correlate this latter with a specific morphology. Typically such a study aims to determine average esthetic preferences for some set of visual displays among a particular jury, given a specific task to judge esthetic quality or qualities. The sample being studied, the displays, the jury or jurys, the rating procedure must all be specified prior to collecting data. A specific emphasis will be given to the rating process and the associated morphometrics, the ultimate goal being to discriminate morphologies judged as attractive among our patients.
Collapse
Affiliation(s)
| | - Yves Bolender
- Faculté de Chirurgie Dentaire, 1 place de l'Hôpital, 67000 Strasbourg, France
| |
Collapse
|
43
|
|
44
|
Prokop P, Rantala MJ, Usak M, Senay I. Is a woman's preference for chest hair in men influenced by parasite threat? Arch Sex Behav 2013; 42:1181-9. [PMID: 22971802 DOI: 10.1007/s10508-012-0007-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Revised: 07/06/2012] [Accepted: 07/06/2012] [Indexed: 05/12/2023]
Abstract
Humans (Homo sapiens) are unique primates due to a lack of a thermally insulating fur covering, typical of all other primates. Our primary goal was to examine the "ectoparasite avoidance mediated by mate choice hypothesis" suggesting that women prefer men lacking chest hair in order to avoid ectoparasite loads. We predicted that women living in areas with high prevalence of pathogens (n = 161) would be less likely to show a preference for a male with chest hair in comparison with women living in areas with low pathogen prevalence (n = 183). We found that overall preference for man chest hair was low, but there were no significant associations between perceived vulnerability to diseases or disgust sensitivity and preference of men who have had experimentally removed chest hair. Women who lived in an environment with a high parasite prevalence rate (Turkey) showed a similar preference for man chest hair as did women from an environment with low parasite prevalence (Slovakia). The participants biological fathers' chest hair had no significant effect on their preference for men with chest hair. Women living in a high-parasite-prevalence environment reported a higher disgust score in the sexual domain and more recent experiences with illnesses, suggesting that parasites influence sensitivity to sexual disgust. These results provide no support for the ectoparasite avoidance hypothesis mediated by mate choice and suggest that shaved men bodies are preferred more by women.
Collapse
Affiliation(s)
- Pavol Prokop
- Department of Biology, Faculty of Education, Trnava University, Priemyselná 4, 918 43, Trnava, Slovakia,
| | | | | | | |
Collapse
|
45
|
Demuth A, Czerniak U, Ziółkowska-Łajp E. A comparison of a subjective body assessment of men and women of the Polish social elite. HOMO 2013; 64:398-409. [DOI: 10.1016/j.jchb.2013.07.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Accepted: 05/28/2013] [Indexed: 10/26/2022]
|
46
|
Mautz BS, Wong BB, Peters RA, Jennions MD. Penis size interacts with body shape and height to influence male attractiveness. Proc Natl Acad Sci U S A 2013; 110:6925-30. [PMID: 23569234 DOI: 10.1073/pnas.1219361110] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Compelling evidence from many animal taxa indicates that male genitalia are often under postcopulatory sexual selection for characteristics that increase a male's relative fertilization success. There could, however, also be direct precopulatory female mate choice based on male genital traits. Before clothing, the nonretractable human penis would have been conspicuous to potential mates. This observation has generated suggestions that human penis size partly evolved because of female choice. Here we show, based upon female assessment of digitally projected life-size, computer-generated images, that penis size interacts with body shape and height to determine male sexual attractiveness. Positive linear selection was detected for penis size, but the marginal increase in attractiveness eventually declined with greater penis size (i.e., quadratic selection). Penis size had a stronger effect on attractiveness in taller men than in shorter men. There was a similar increase in the positive effect of penis size on attractiveness with a more masculine body shape (i.e., greater shoulder-to-hip ratio). Surprisingly, larger penis size and greater height had almost equivalent positive effects on male attractiveness. Our results support the hypothesis that female mate choice could have driven the evolution of larger penises in humans. More broadly, our results show that precopulatory sexual selection can play a role in the evolution of genital traits.
Collapse
|
47
|
|
48
|
Costa RM, Miller GF, Brody S. Women Who Prefer Longer Penises Are More Likely to Have Vaginal Orgasms (but Not Clitoral Orgasms): Implications for an Evolutionary Theory of Vaginal Orgasm. J Sex Med 2012; 9:3079-88. [DOI: 10.1111/j.1743-6109.2012.02917.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
49
|
Dagnino B, Navajas J, Sigman M. Eye fixations indicate men's preference for female breasts or buttocks. Arch Sex Behav 2012; 41:929-937. [PMID: 22552704 DOI: 10.1007/s10508-012-9945-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Revised: 12/15/2011] [Accepted: 12/30/2011] [Indexed: 05/31/2023]
Abstract
Evolutionary psychologists have been interested in male preferences for particular female traits that are thought to signal health and reproductive potential. While the majority of studies have focused on what makes specific body traits attractive-such as the waist-to-hip ratio, the body mass index, and breasts shape and size-there is little empirical research that has examined individual differences in male preferences for specific traits (e.g., favoring breasts over buttocks). The current study begins to fill this empirical gap. In the first experiment (Study 1), 184 male participants were asked to report their preference between breasts and buttocks on a continuous scale. We found that (1) the distribution of preference was bimodal, indicating that Argentinean males tended to define themselves as favoring breasts or buttocks but rarely thinking that these traits contributed equally to their choice and (2) the distribution was biased towards buttocks. In a second experiment (Study 2), 19 male participants were asked to rate pictures of female breasts and buttocks. This study was necessary to generate three categories of pictures with statistically different ratings (high, medium, and low). In a third experiment (Study 3), we recorded eye-movements of 25 male participants while they chose the more attractive between two women, only seeing their breasts and buttock. We found that the first and last fixations were systematically directed towards the self-reported preferred trait.
Collapse
Affiliation(s)
- Bruno Dagnino
- Department of Physics, University of Buenos Aires, Buenos Aires, Argentina
| | | | | |
Collapse
|
50
|
|