Dynamic eye tracking based metrics for infant gaze patterns in the face-distractor competition paradigm.

<h4>Objective</h4>To develop new standardized eye tracking based measures and metrics for infants' gaze dynamics in the face-distractor competition paradigm.<h4>Method</h4>Eye tracking data were collected from two samples of healthy 7-month-old (total n = 45), as well as...

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Autores principales:	Eero Ahtola, Susanna Stjerna, Santeri Yrttiaho, Charles A Nelson, Jukka M Leppänen, Sampsa Vanhatalo
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/15efc01b291e484e971edc75715949e9
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id	oai:doaj.org-article:15efc01b291e484e971edc75715949e9
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spelling	oai:doaj.org-article:15efc01b291e484e971edc75715949e92021-11-18T08:18:37ZDynamic eye tracking based metrics for infant gaze patterns in the face-distractor competition paradigm.1932-620310.1371/journal.pone.0097299https://doaj.org/article/15efc01b291e484e971edc75715949e92014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24845102/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Objective</h4>To develop new standardized eye tracking based measures and metrics for infants' gaze dynamics in the face-distractor competition paradigm.<h4>Method</h4>Eye tracking data were collected from two samples of healthy 7-month-old (total n = 45), as well as one sample of 5-month-old infants (n = 22) in a paradigm with a picture of a face or a non-face pattern as a central stimulus, and a geometric shape as a lateral stimulus. The data were analyzed by using conventional measures of infants' initial disengagement from the central to the lateral stimulus (i.e., saccadic reaction time and probability) and, additionally, novel measures reflecting infants gaze dynamics after the initial disengagement (i.e., cumulative allocation of attention to the central vs. peripheral stimulus).<h4>Results</h4>The results showed that the initial saccade away from the centrally presented stimulus is followed by a rapid re-engagement of attention with the central stimulus, leading to cumulative preference for the central stimulus over the lateral stimulus over time. This pattern tended to be stronger for salient facial expressions as compared to non-face patterns, was replicable across two independent samples of 7-month-old infants, and differentiated between 7 and 5 month-old infants.<h4>Conclusion</h4>The results suggest that eye tracking based assessments of infants' cumulative preference for faces over time can be readily parameterized and standardized, and may provide valuable techniques for future studies examining normative developmental changes in preference for social signals.<h4>Significance</h4>Standardized measures of early developing face preferences may have potential to become surrogate biomarkers of neurocognitive and social development.Eero AhtolaSusanna StjernaSanteri YrttiahoCharles A NelsonJukka M LeppänenSampsa VanhataloPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 5, p e97299 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Eero Ahtola Susanna Stjerna Santeri Yrttiaho Charles A Nelson Jukka M Leppänen Sampsa Vanhatalo Dynamic eye tracking based metrics for infant gaze patterns in the face-distractor competition paradigm.
description	<h4>Objective</h4>To develop new standardized eye tracking based measures and metrics for infants' gaze dynamics in the face-distractor competition paradigm.<h4>Method</h4>Eye tracking data were collected from two samples of healthy 7-month-old (total n = 45), as well as one sample of 5-month-old infants (n = 22) in a paradigm with a picture of a face or a non-face pattern as a central stimulus, and a geometric shape as a lateral stimulus. The data were analyzed by using conventional measures of infants' initial disengagement from the central to the lateral stimulus (i.e., saccadic reaction time and probability) and, additionally, novel measures reflecting infants gaze dynamics after the initial disengagement (i.e., cumulative allocation of attention to the central vs. peripheral stimulus).<h4>Results</h4>The results showed that the initial saccade away from the centrally presented stimulus is followed by a rapid re-engagement of attention with the central stimulus, leading to cumulative preference for the central stimulus over the lateral stimulus over time. This pattern tended to be stronger for salient facial expressions as compared to non-face patterns, was replicable across two independent samples of 7-month-old infants, and differentiated between 7 and 5 month-old infants.<h4>Conclusion</h4>The results suggest that eye tracking based assessments of infants' cumulative preference for faces over time can be readily parameterized and standardized, and may provide valuable techniques for future studies examining normative developmental changes in preference for social signals.<h4>Significance</h4>Standardized measures of early developing face preferences may have potential to become surrogate biomarkers of neurocognitive and social development.
format	article
author	Eero Ahtola Susanna Stjerna Santeri Yrttiaho Charles A Nelson Jukka M Leppänen Sampsa Vanhatalo
author_facet	Eero Ahtola Susanna Stjerna Santeri Yrttiaho Charles A Nelson Jukka M Leppänen Sampsa Vanhatalo
author_sort	Eero Ahtola
title	Dynamic eye tracking based metrics for infant gaze patterns in the face-distractor competition paradigm.
title_short	Dynamic eye tracking based metrics for infant gaze patterns in the face-distractor competition paradigm.
title_full	Dynamic eye tracking based metrics for infant gaze patterns in the face-distractor competition paradigm.
title_fullStr	Dynamic eye tracking based metrics for infant gaze patterns in the face-distractor competition paradigm.
title_full_unstemmed	Dynamic eye tracking based metrics for infant gaze patterns in the face-distractor competition paradigm.
title_sort	dynamic eye tracking based metrics for infant gaze patterns in the face-distractor competition paradigm.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/15efc01b291e484e971edc75715949e9
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Dynamic eye tracking based metrics for infant gaze patterns in the face-distractor competition paradigm.

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