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dc.contributor.authorCarrito, M. L.
dc.contributor.authorBem-Haja, P.
dc.contributor.authorSilva, C. F.
dc.contributor.authorPerrett, D. I.
dc.contributor.authorSantos, I. M.
dc.identifier.citationCarrito , M L , Bem-Haja , P , Silva , C F , Perrett , D I & Santos , I M 2018 , ' Event-related potentials modulated by the perception of sexual dimorphism : the influence of attractiveness and sex of faces ' , Biological Psychology , vol. 137 , pp. 1-11 .
dc.identifier.otherRIS: urn:159902A443CD00E09B33F728110B8C50
dc.identifier.otherORCID: /0000-0002-6025-0939/work/64360956
dc.descriptionThis work was supported by Fundação para a Ciência e a Tecnologia and Programa Operacional de Potencial Humano/Fundo Social Europeu [Grant reference SFRH/BD/77592/2011 to M. L. C.].en
dc.description.abstractSexual dimorphism has been proposed as one of the facial traits to have evolved through sexual selection and to affect attractiveness perception. Even with numerous studies documenting its effect on attractiveness and mate choice, the neurophysiological correlates of the perception of sexual dimorphism are not yet fully understood. In the present study, event-related potentials (ERPs) were recorded during visualisation of faces that had been previously transformed in shape to appear more masculine or more feminine. The participants’ task consisted of judging the attractiveness of half of the total number of faces, and performing a sex discrimination task on the other half. Both early and late potentials were modulated by the sex of faces, whereas the effect of the sexually dimorphic transform was mainly visible in the P2 (positive deflection around 200 ms after stimulus onset), EPN (early posterior negativity) and LPP (late positive potentials) components. There was an effect of sexual dimorphism on P2 and EPN amplitudes when female participants visualised male faces, which may indicate that masculinity is particularly attended to when viewing opposite sex members. Also, ERP results seem to support the idea of sex differences in social categorisation decisions regarding faces, although differences were not evident on behavioural results. In general, these findings contribute to a better understanding of how humans perceive sexually dimorphic characteristics in other individuals’ faces and how they affect attractiveness judgements.
dc.relation.ispartofBiological Psychologyen
dc.subjectFace perceptionen
dc.subjectSex discriminationen
dc.subjectSexual dimorphismen
dc.subjectEvent-related potentials (ERP)en
dc.subjectSex differencesen
dc.subjectBF Psychologyen
dc.titleEvent-related potentials modulated by the perception of sexual dimorphism : the influence of attractiveness and sex of facesen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Psychology and Neuroscienceen
dc.contributor.institutionUniversity of St Andrews. Institute of Behavioural and Neural Sciencesen
dc.contributor.institutionUniversity of St Andrews. Centre for Social Learning & Cognitive Evolutionen
dc.description.statusPeer revieweden

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