5.00
Hdl Handle:
http://hdl.handle.net/10547/225573
Title:
Fluctuating asymmetry and preferences for sex-typical bodily characteristics
Authors:
Brown, William Michael; Price, M.E.; Kang, J.; Pound, N.; Zhao, Y.; Yu, H.
Abstract:
Body size and shape seem to have been sexually selected in a variety of species, including humans, but little is known about what attractive bodies signal about underlying genotypic or phenotypic quality. A widely used indicator of phenotypic quality in evolutionary analyses is degree of symmetry (i.e., fluctuating asymmetry, FA) because it is a marker of developmental stability, which is defined as an organism's ability to develop toward an adaptive end-point despite perturbations during its ontogeny. Here we sought to establish whether attractive bodies signal low FA to observers, and, if so, which aspects of attractive bodies are most predictive of lower FA. We used a 3D optical body scanner to measure FA and to isolate size and shape characteristics in a sample of 77 individuals (40 males and 37 females). From the 3D body scan data, 360° videos were created that separated body shape from other aspects of visual appearance (e.g., skin color and facial features). These videos then were presented to 87 evaluators for attractiveness ratings. We found strong negative correlations between FA and bodily attractiveness in both sexes. Further, sex-typical body size and shape characteristics were rated as attractive and correlated negatively with FA. Finally, geometric morphometric analysis of joint configurations revealed that sex-typical joint configurations were associated with both perceived attractiveness and lower FA for male but not for female bodies. In sum, body size and shape seem to show evidence of sexual selection and indicate important information about the phenotypic quality of individuals.
Affiliation:
University of Bedfordshire
Citation:
Brown, W. M., Price, M. E., Kang, J., Pound, N., Zhao, Y. and Yu, H. (2008) 'Fluctuating asymmetry and preferences for sex-typical bodily characteristics', Proceedings of the National Academy of Sciences, 105(35):12938.
Journal:
Proceedings of the National Academy of Sciences
Issue Date:
23-May-2012
URI:
http://hdl.handle.net/10547/225573
DOI:
10.1073/pnas.0710420105; 10.1073/pnas.0710420105
Additional Links:
http://www.pnas.org/cgi/doi/10.1073/pnas.0710420105
Language:
en
ISSN:
0027-8424; 1091-6490
Appears in Collections:
Muscle Cellular and Molecular Physiology

Full metadata record

DC FieldValue Language
dc.contributor.authorBrown, William Michaelen_GB
dc.contributor.authorPrice, M.E.en_GB
dc.contributor.authorKang, J.en_GB
dc.contributor.authorPound, N.en_GB
dc.contributor.authorZhao, Y.en_GB
dc.contributor.authorYu, H.en_GB
dc.date.accessioned2012-05-23T10:46:44Z-
dc.date.available2012-05-23T10:46:44Z-
dc.date.issued2012-05-23-
dc.identifier.citationBrown, W. M., Price, M. E., Kang, J., Pound, N., Zhao, Y. and Yu, H. (2008) 'Fluctuating asymmetry and preferences for sex-typical bodily characteristics', Proceedings of the National Academy of Sciences, 105(35):12938.en_GB
dc.identifier.issn0027-8424-
dc.identifier.issn1091-6490-
dc.identifier.doi10.1073/pnas.0710420105-
dc.identifier.doi10.1073/pnas.0710420105-
dc.identifier.urihttp://hdl.handle.net/10547/225573-
dc.description.abstractBody size and shape seem to have been sexually selected in a variety of species, including humans, but little is known about what attractive bodies signal about underlying genotypic or phenotypic quality. A widely used indicator of phenotypic quality in evolutionary analyses is degree of symmetry (i.e., fluctuating asymmetry, FA) because it is a marker of developmental stability, which is defined as an organism's ability to develop toward an adaptive end-point despite perturbations during its ontogeny. Here we sought to establish whether attractive bodies signal low FA to observers, and, if so, which aspects of attractive bodies are most predictive of lower FA. We used a 3D optical body scanner to measure FA and to isolate size and shape characteristics in a sample of 77 individuals (40 males and 37 females). From the 3D body scan data, 360° videos were created that separated body shape from other aspects of visual appearance (e.g., skin color and facial features). These videos then were presented to 87 evaluators for attractiveness ratings. We found strong negative correlations between FA and bodily attractiveness in both sexes. Further, sex-typical body size and shape characteristics were rated as attractive and correlated negatively with FA. Finally, geometric morphometric analysis of joint configurations revealed that sex-typical joint configurations were associated with both perceived attractiveness and lower FA for male but not for female bodies. In sum, body size and shape seem to show evidence of sexual selection and indicate important information about the phenotypic quality of individuals.en_GB
dc.language.isoenen
dc.relation.urlhttp://www.pnas.org/cgi/doi/10.1073/pnas.0710420105en_GB
dc.rightsArchived with thanks to Proceedings of the National Academy of Sciencesen_GB
dc.titleFluctuating asymmetry and preferences for sex-typical bodily characteristicsen
dc.contributor.departmentUniversity of Bedfordshireen_GB
dc.identifier.journalProceedings of the National Academy of Sciencesen_GB
dc.contributor.sponsorHigher Education Funding Council; British Academy Granten_GB
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