Identificador persistente para citar o vincular este elemento: https://accedacris.ulpgc.es/handle/10553/140502
Campo DC Valoridioma
dc.contributor.authorDanel, Dariusz P.en_US
dc.contributor.authorWacewicz, J. Slawomiren_US
dc.contributor.authorLewandowski, Zdzisławen_US
dc.contributor.authorŻywiczyński, Przemysławen_US
dc.contributor.authorPerea García, Juan Olvidoen_US
dc.date.accessioned2025-06-19T09:46:31Z-
dc.date.available2025-06-19T09:46:31Z-
dc.date.issued2018en_US
dc.identifier.issn1437-9546en_US
dc.identifier.urihttps://accedacris.ulpgc.es/handle/10553/140502-
dc.description.abstractUnderstanding the adaptive function of the unique morphology of the human eye, in particular its overexposed white sclera, may have profound implications for the fields of evolutionary behavioural science, and specifically the areas of human interaction and social cognition. Existing hypotheses, such as the cooperative eye hypothesis, have attracted a lot of attention but remain untested. Here, we: (i) analysed variation in the visible sclera size in humans from different ethnic backgrounds and (ii) examined whether intraspecific variation of exposed sclera size is related to trust. We used 596 facial photographs of men and women, assessed for perceived trustworthiness, from four different self-declared racial backgrounds. The size of the exposed sclera was measured as the ratio between the width of the exposed eyeball and the diameter of the iris (sclera size index, SSI). The SSI did not differ in the four examined races and was sexually monomorphic except for Whites, where males had a larger SSI than females. In general, the association between the SSI and trustworthiness was statistically insignificant. An inverted U-shaped link was found only in White women, yet the strength of the effect of interaction between sex and race was very small. Our results did not provide evidence for the link between exposed sclera size and trustworthiness. We conclude that further investigation is necessary in order to properly assess the hypotheses relating to the socially relevant functions of overexposed sclera.en_US
dc.languageengen_US
dc.relation.ispartofActa Ethologicaen_US
dc.sourceActa Ethologica [ISSN 1437-9546], v 21, (Agosto 2018)en_US
dc.subject32 Ciencias médicasen_US
dc.subject24 Ciencias de la vidaen_US
dc.subject.otherHuman eyeen_US
dc.subject.otherTrustworthinessen_US
dc.subject.otherWhitescleraen_US
dc.subject.otherExposed sclera size index SSIen_US
dc.subject.otherCooperative eye hypothesisen_US
dc.titleHumans do not perceive conspecifics with a greater exposed sclera as more trustworthy: a preliminary cross-ethnic study of the function of the overexposed human scleraen_US
dc.typeinfo:eu-repo/semantics/articleen_US
dc.typeArticleen_US
dc.identifier.doi10.1007/s10211-018-0296-5en_US
dc.description.lastpage208en_US
dc.description.firstpage203en_US
dc.relation.volume21en_US
dc.investigacionCiencias de la Saluden_US
dc.type2Artículoen_US
dc.description.numberofpages6en_US
dc.utils.revisionen_US
dc.date.coverdateAgosto 2018en_US
dc.identifier.ulpgcen_US
dc.contributor.buulpgcBU-VETen_US
dc.description.sjr0,634
dc.description.jcr0,966
dc.description.sjrqQ2
dc.description.jcrqQ3
dc.description.scieSCIE
item.grantfulltextopen-
item.fulltextCon texto completo-
crisitem.author.deptGIR Discourse, Communication and Society-
crisitem.author.deptDepartamento de Filología Moderna, Traducción e Interpretación-
crisitem.author.orcidhttps://orcid.org/0000-0001-6559-0652-
crisitem.author.parentorgDepartamento de Filología Moderna, Traducción e Interpretación-
crisitem.author.fullNamePerea García, Juan Olvido-
Colección:Artículos
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