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The Waist-To-Shoulder Ratio as a secondary sexual trait in male human bodies: behavioral and electrophysiological studies

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Denomination Maîtrise universitaire en psychologie
Defense Maîtrise : Univ. Genève, 2011
Abstract Studies on physical attractiveness in men have included a particular focus on waist-to-shoulder ratio (WSR). The circumference of the shoulders relative to the waist is a sexually dimorphic feature considered as a criterion of health and beauty in our culture. By means of a behavioral and an ERP study on a group of right handed heterosexual healthy participants we investigate the cognitive and physiological mechanisms implicated in the observation of male human bodies with different WSR. In one hand, this secondary trait has been studied through a behavioral experiment in order to understand which of WSR is considered more attractive. 40 subjects (between 18-60 years old) were tested. On the other hand, the significant behavioral results have been deepened by means of an EEG experiment over 20 subjects (between 19 and 37 years old), for understanding the physiological correlates of this stimuli. The behavioral results show that the WSR influences on the assessment of the attractiveness of the male bodies and there is a difference between men and women. Women considered the WSR of 0.6 more attractive in both view. Men did not perceive the difference between a WSR of 0.6 and 0.5 in a front view and considered more attractive the WSR of 0.5 in back view. The EEG study shows that male human bodies elicits a N190 but we do not find any significant results concerning the WSR. Nevertheless, a trend to the significance between the view and WSR has been highlight for the N190 component. It seems that the WSR of 0.7 in a front view elicits a better trend of N190 than the other WSR for women. This study presents two experiments that could be useful for a further elaboration on the male human body processing’s knowledge.
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Research group Neuropsychologie expérimentale
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CHILLA, Chiara. The Waist-To-Shoulder Ratio as a secondary sexual trait in male human bodies: behavioral and electrophysiological studies. Université de Genève. Maîtrise, 2011. https://archive-ouverte.unige.ch/unige:17623

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Deposited on : 2011-11-28

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