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An eye-tracking investigation of developmental changes in infants’ exploration of upright and inverted human faces

Identifieur interne : 000640 ( Pmc/Curation ); précédent : 000639; suivant : 000641

An eye-tracking investigation of developmental changes in infants’ exploration of upright and inverted human faces

Auteurs : Lisa M. Oakes ; Ann E. Ellis

Source :

RBID : PMC:3601672

Abstract

We used eye-tracking to examine 4.5- to 12.5-month-old infants’ (N = 92) eye-movements during 3-s presentations of upright and inverted faces. Scanning of inverted faces was statistically indistinguishable at 4.5, 6.5, 8, and 12.5 months of age; at each of these ages infants disproportionately scanned the region containing the eyes. Scanning of upright faces changed over this age range. When viewing upright faces, 4.5-month-old and 6.5-month-old infants focused disproportionately on the region containing the eyes, whereas 12.5-month-old and 8-month-old infants distributed looking more broadly, scanning more of the internal area of the faces. These results are consistent with other observed developmental differences in face processing, and provide insight into how moment-to-moment face processing changes during infancy.


Url:
DOI: 10.1111/j.1532-7078.2011.00107.x
PubMed: 23525142
PubMed Central: 3601672

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PMC:3601672

Le document en format XML

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<name sortKey="Ellis, Ann E" sort="Ellis, Ann E" uniqKey="Ellis A" first="Ann E." last="Ellis">Ann E. Ellis</name>
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<title level="j">Infancy : the official journal of the International Society on Infant Studies</title>
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<author-notes>
<corresp id="FN1">Correspondences should be addressed to Ann E. Ellis, Department of Psychology, 1116 8th Ave., Grinnell College, Grinnell, IA 50112 (
<email>ellisa@grinnell.edu</email>
), or Lisa M. Oakes, Center for Mind and Brain, 267 Cousteau Pl., University of California, Davis, CA 95618 (
<email>lmoakes@ucdavis.edu</email>
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<fn id="FN2" fn-type="equal">
<p>The authors contributed equally to this work; order of authorship was determined by a coin toss.</p>
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<p id="P1">We used eye-tracking to examine 4.5- to 12.5-month-old infants’ (
<italic>N</italic>
= 92) eye-movements during 3-s presentations of upright and inverted faces. Scanning of inverted faces was statistically indistinguishable at 4.5, 6.5, 8, and 12.5 months of age; at each of these ages infants disproportionately scanned the region containing the eyes. Scanning of upright faces changed over this age range. When viewing upright faces, 4.5-month-old and 6.5-month-old infants focused disproportionately on the region containing the eyes, whereas 12.5-month-old and 8-month-old infants distributed looking more broadly, scanning more of the internal area of the faces. These results are consistent with other observed developmental differences in face processing, and provide insight into how moment-to-moment face processing changes during infancy.</p>
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