Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/121613
Título: Visual attention mechanisms in happiness versus trustworthiness processing of facial expressions
Autores/as: Calvo, Manuel G.
Krumhuber, Eva G.
Fernández Martín, Andrés 
Clasificación UNESCO: 610604 Análisis experimental de la conducta
Palabras clave: Attention
Dynamic facial expressions
Eye movements
Happy faces
Trustworthiness
Fecha de publicación: 2018
Publicación seriada: Quarterly Journal of Experimental Psychology 
Resumen: A happy facial expression makes a person look (more) trustworthy. Do perceptions of happiness and trustworthiness rely on the same face regions and visual attention processes? In an eye-tracking study, eye movements and fixations were recorded while participants judged the un/happiness or the un/trustworthiness of dynamic facial expressions in which the eyes and/or the mouth unfolded from neutral to happy or vice versa. A smiling mouth and happy eyes enhanced perceived happiness and trustworthiness similarly, with a greater contribution of the smile relative to the eyes. This comparable judgement output for happiness and trustworthiness was reached through shared as well as distinct attentional mechanisms: (a) <i>entry times</i> and (b) initial fixation <i>thresholds</i> for each face region were equivalent for both judgements, thereby revealing the same attentional <i>orienting</i> in happiness and trustworthiness processing. However, (c) greater and (d) longer <i>fixation density</i> for the mouth region in the happiness task, and for the eye region in the trustworthiness task, demonstrated different selective attentional <i>engagement</i>. Relatedly, (e) mean <i>fixation duration</i> across face regions was longer in the trustworthiness task, thus showing increased attentional intensity or processing effort.
URI: http://hdl.handle.net/10553/121613
ISSN: 1747-0218
DOI: 10.1177/1747021818763747
Fuente: Quarterly Journal of Experimental Psychology [ISSN 1747-0218], v. 72 (4), (2018)
Colección:Artículos
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