Holistic gaze strategy to categorize facial expression of varying intensities.

Using faces representing exaggerated emotional expressions, recent behaviour and eye-tracking studies have suggested a dominant role of individual facial features in transmitting diagnostic cues for decoding facial expressions. Considering that in everyday life we frequently view low-intensity expre...

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Autor principal:	Kun Guo
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8d4f8405ff2f4ea69340accfa4c830fe
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id	oai:doaj.org-article:8d4f8405ff2f4ea69340accfa4c830fe
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spelling	oai:doaj.org-article:8d4f8405ff2f4ea69340accfa4c830fe2021-11-18T07:09:42ZHolistic gaze strategy to categorize facial expression of varying intensities.1932-620310.1371/journal.pone.0042585https://doaj.org/article/8d4f8405ff2f4ea69340accfa4c830fe2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22880043/?tool=EBIhttps://doaj.org/toc/1932-6203Using faces representing exaggerated emotional expressions, recent behaviour and eye-tracking studies have suggested a dominant role of individual facial features in transmitting diagnostic cues for decoding facial expressions. Considering that in everyday life we frequently view low-intensity expressive faces in which local facial cues are more ambiguous, we probably need to combine expressive cues from more than one facial feature to reliably decode naturalistic facial affects. In this study we applied a morphing technique to systematically vary intensities of six basic facial expressions of emotion, and employed a self-paced expression categorization task to measure participants' categorization performance and associated gaze patterns. The analysis of pooled data from all expressions showed that increasing expression intensity would improve categorization accuracy, shorten reaction time and reduce number of fixations directed at faces. The proportion of fixations and viewing time directed at internal facial features (eyes, nose and mouth region), however, was not affected by varying levels of intensity. Further comparison between individual facial expressions revealed that although proportional gaze allocation at individual facial features was quantitatively modulated by the viewed expressions, the overall gaze distribution in face viewing was qualitatively similar across different facial expressions and different intensities. It seems that we adopt a holistic viewing strategy to extract expressive cues from all internal facial features in processing of naturalistic facial expressions.Kun GuoPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 8, p e42585 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kun Guo Holistic gaze strategy to categorize facial expression of varying intensities.
description	Using faces representing exaggerated emotional expressions, recent behaviour and eye-tracking studies have suggested a dominant role of individual facial features in transmitting diagnostic cues for decoding facial expressions. Considering that in everyday life we frequently view low-intensity expressive faces in which local facial cues are more ambiguous, we probably need to combine expressive cues from more than one facial feature to reliably decode naturalistic facial affects. In this study we applied a morphing technique to systematically vary intensities of six basic facial expressions of emotion, and employed a self-paced expression categorization task to measure participants' categorization performance and associated gaze patterns. The analysis of pooled data from all expressions showed that increasing expression intensity would improve categorization accuracy, shorten reaction time and reduce number of fixations directed at faces. The proportion of fixations and viewing time directed at internal facial features (eyes, nose and mouth region), however, was not affected by varying levels of intensity. Further comparison between individual facial expressions revealed that although proportional gaze allocation at individual facial features was quantitatively modulated by the viewed expressions, the overall gaze distribution in face viewing was qualitatively similar across different facial expressions and different intensities. It seems that we adopt a holistic viewing strategy to extract expressive cues from all internal facial features in processing of naturalistic facial expressions.
format	article
author	Kun Guo
author_facet	Kun Guo
author_sort	Kun Guo
title	Holistic gaze strategy to categorize facial expression of varying intensities.
title_short	Holistic gaze strategy to categorize facial expression of varying intensities.
title_full	Holistic gaze strategy to categorize facial expression of varying intensities.
title_fullStr	Holistic gaze strategy to categorize facial expression of varying intensities.
title_full_unstemmed	Holistic gaze strategy to categorize facial expression of varying intensities.
title_sort	holistic gaze strategy to categorize facial expression of varying intensities.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/8d4f8405ff2f4ea69340accfa4c830fe
work_keys_str_mv	AT kunguo holisticgazestrategytocategorizefacialexpressionofvaryingintensities
_version_	1718423863721721856

Holistic gaze strategy to categorize facial expression of varying intensities.

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