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Aesthetic and incentive salience of cute infant faces : studies of observer sex, oral contraception and menstrual cycle

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journal.pone.0065844.pdf (409.9Kb)
Date
29/05/2013
Author
Sprengelmeyer, Reiner
Lewis, Jennifer
Hahn, Amanda
Perrett, David I.
Keywords
Gender-differences
Facial expressions
Adults responses
Attractiveness
Beautiful
Reward
BF Psychology
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Abstract
Infant cuteness can influence adult-infant interaction and has been shown to activate reward centres in the brain. In a previous study, we found men and women to be differentially sensitive to small differences in infant facial cuteness, with reproductive hormone status as the potential underlying cause. It is unclear, however, whether reproductive hormone status impacts on the aesthetic and incentive salience of infant faces. To address this question, we conducted two interlinked studies. We used static images of the same smiling and neutral-looking infant faces in both a rating task, in which participants had to rate the cuteness of infant faces (aesthetic salience - 'liking'), and a key-press task, in which participants could prolong or shorten viewing time of infant faces by rapid alternating key-presses (incentive salience - 'wanting'). In a first study, we compared the performance of men, women who are taking oral contraceptives, and regularly cycling women. In this study, we found a significant correlation between cuteness ratings within and between groups, which implies that participants had the same concept of cuteness. Cuteness ratings and effort to look at faces was linked regardless of sex and reproductive hormone status, in that cute faces were looked at for longer than less cute faces. A happy facial expression contributed only marginally to the incentive salience of the face. To explore the potential impact of reproductive hormone status in more detail, we followed a subset of regularly cycling women during the menstrual, follicular and luteal phases of their cycle. The aesthetic and incentive salience of infant faces did not change across the menstrual cycle. Our findings suggest that reproductive hormone status does not modulate the aesthetic and incentive value of infant faces.
Citation
Sprengelmeyer , R , Lewis , J , Hahn , A & Perrett , D I 2013 , ' Aesthetic and incentive salience of cute infant faces : studies of observer sex, oral contraception and menstrual cycle ' , PLoS One , vol. 8 , no. 5 , e65844 . https://doi.org/10.1371/journal.pone.0065844
Publication
PLoS One
Status
Peer reviewed
DOI
https://doi.org/10.1371/journal.pone.0065844
ISSN
1932-6203
Type
Journal article
Rights
© 2013 Sprengelmeyer et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/3857

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