Visual scan paths and recognition of facial identity in autism spectrum disorder and typical development.

<h4>Background</h4>Previous research suggests that many individuals with autism spectrum disorder (ASD) have impaired facial identity recognition, and also exhibit abnormal visual scanning of faces. Here, two hypotheses accounting for an association between these observations were tested...

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Autores principales:	C Ellie Wilson, Romina Palermo, Jon Brock
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ba46f5a08e39467dac6fc1927bd53316
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spelling	oai:doaj.org-article:ba46f5a08e39467dac6fc1927bd533162021-11-18T07:17:08ZVisual scan paths and recognition of facial identity in autism spectrum disorder and typical development.1932-620310.1371/journal.pone.0037681https://doaj.org/article/ba46f5a08e39467dac6fc1927bd533162012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22666378/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Previous research suggests that many individuals with autism spectrum disorder (ASD) have impaired facial identity recognition, and also exhibit abnormal visual scanning of faces. Here, two hypotheses accounting for an association between these observations were tested: i) better facial identity recognition is associated with increased gaze time on the Eye region; ii) better facial identity recognition is associated with increased eye-movements around the face.<h4>Methodology and principal findings</h4>Eye-movements of 11 children with ASD and 11 age-matched typically developing (TD) controls were recorded whilst they viewed a series of faces, and then completed a two alternative forced-choice recognition memory test for the faces. Scores on the memory task were standardized according to age. In both groups, there was no evidence of an association between the proportion of time spent looking at the Eye region of faces and age-standardized recognition performance, thus the first hypothesis was rejected. However, the 'Dynamic Scanning Index'--which was incremented each time the participant saccaded into and out of one of the core-feature interest areas--was strongly associated with age-standardized face recognition scores in both groups, even after controlling for various other potential predictors of performance.<h4>Conclusions and significance</h4>In support of the second hypothesis, results suggested that increased saccading between core-features was associated with more accurate face recognition ability, both in typical development and ASD. Causal directions of this relationship remain undetermined.C Ellie WilsonRomina PalermoJon BrockPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 5, p e37681 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q C Ellie Wilson Romina Palermo Jon Brock Visual scan paths and recognition of facial identity in autism spectrum disorder and typical development.
description	<h4>Background</h4>Previous research suggests that many individuals with autism spectrum disorder (ASD) have impaired facial identity recognition, and also exhibit abnormal visual scanning of faces. Here, two hypotheses accounting for an association between these observations were tested: i) better facial identity recognition is associated with increased gaze time on the Eye region; ii) better facial identity recognition is associated with increased eye-movements around the face.<h4>Methodology and principal findings</h4>Eye-movements of 11 children with ASD and 11 age-matched typically developing (TD) controls were recorded whilst they viewed a series of faces, and then completed a two alternative forced-choice recognition memory test for the faces. Scores on the memory task were standardized according to age. In both groups, there was no evidence of an association between the proportion of time spent looking at the Eye region of faces and age-standardized recognition performance, thus the first hypothesis was rejected. However, the 'Dynamic Scanning Index'--which was incremented each time the participant saccaded into and out of one of the core-feature interest areas--was strongly associated with age-standardized face recognition scores in both groups, even after controlling for various other potential predictors of performance.<h4>Conclusions and significance</h4>In support of the second hypothesis, results suggested that increased saccading between core-features was associated with more accurate face recognition ability, both in typical development and ASD. Causal directions of this relationship remain undetermined.
format	article
author	C Ellie Wilson Romina Palermo Jon Brock
author_facet	C Ellie Wilson Romina Palermo Jon Brock
author_sort	C Ellie Wilson
title	Visual scan paths and recognition of facial identity in autism spectrum disorder and typical development.
title_short	Visual scan paths and recognition of facial identity in autism spectrum disorder and typical development.
title_full	Visual scan paths and recognition of facial identity in autism spectrum disorder and typical development.
title_fullStr	Visual scan paths and recognition of facial identity in autism spectrum disorder and typical development.
title_full_unstemmed	Visual scan paths and recognition of facial identity in autism spectrum disorder and typical development.
title_sort	visual scan paths and recognition of facial identity in autism spectrum disorder and typical development.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/ba46f5a08e39467dac6fc1927bd53316
work_keys_str_mv	AT celliewilson visualscanpathsandrecognitionoffacialidentityinautismspectrumdisorderandtypicaldevelopment AT rominapalermo visualscanpathsandrecognitionoffacialidentityinautismspectrumdisorderandtypicaldevelopment AT jonbrock visualscanpathsandrecognitionoffacialidentityinautismspectrumdisorderandtypicaldevelopment
_version_	1718423690112139264

Visual scan paths and recognition of facial identity in autism spectrum disorder and typical development.

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