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Event-related potentials modulated by the perception of sexual dimorphism: The influence of attractiveness and sex of faces

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dc.contributor.authorCarrito, Mariana L.
dc.contributor.authorBem-Haja, Pedro
dc.contributor.authorSilva, Carlos Fernandes da
dc.contributor.authorPerrett, D. I.
dc.contributor.authorSantos, I. M.
dc.date.accessioned2019-04-02T19:11:23Z
dc.date.available2019-04-02T19:11:23Z
dc.date.issued2018
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 potential) 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.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBiological Psychology, 137, 1-11 Doi:pt_PT
dc.identifier.doi10.1016/j.biopsycho.2018.06.002pt_PT
dc.identifier.issn03010511
dc.identifier.urihttp://hdl.handle.net/10400.12/6974
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevier BVpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectFace perceptionpt_PT
dc.subjectSex discriminationpt_PT
dc.subjectSexual dimorphismpt_PT
dc.subjectEvent-related potentials (ERP)pt_PT
dc.subjectAttractivenesspt_PT
dc.subjectSex differencespt_PT
dc.titleEvent-related potentials modulated by the perception of sexual dimorphism: The influence of attractiveness and sex of facespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceNetherlandspt_PT
oaire.citation.endPage11pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleBiological Psychologypt_PT
oaire.citation.volume137pt_PT
person.familyNameBem-Haja
person.givenNamePedro
person.identifier1538413
person.identifier.ciencia-idD715-535B-782C
person.identifier.orcid0000-0002-7547-5743
person.identifier.ridG-8283-2015
person.identifier.scopus-author-id56829609900
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication2d6177e6-83f0-4926-a72d-dd4f8283d0e8
relation.isAuthorOfPublication.latestForDiscovery2d6177e6-83f0-4926-a72d-dd4f8283d0e8

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