| Spatial resolution of conscious visual perception in infants. | |
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MedLine Citation:
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PMID: 20817914 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Humans' conscious awareness of objects in their visual periphery is limited. This limit is not entirely the result of reduced visual acuity. Rather, it is primarily caused by crowding--the difficulty identifying an object when it is surrounded by clutter. The effect of crowding on visual awareness in infants has yet to be explored. Do infants, for example, have a fine-grained "spotlight," as adults do, or do infants have a diffuse "lantern" that sets limits on what they can register in their visual periphery? We designed an eye-tracking paradigm to psychophysically measure crowding in infants between 6 months and 15 months of age. We showed infants pairs of faces at three eccentricities, in the presence or absence of flankers, and recorded infants' first saccade from central fixation to either face. Infants could discriminate faces in the periphery, and flankers impaired this ability. We found that the effective spatial resolution of infants' visual perception increased with age, but was only half that of adults. |
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Authors:
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Faraz Farzin; Susan M Rivera; David Whitney |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, Non-P.H.S. Date: 2010-09-03 |
Journal Detail:
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Title: Psychological science Volume: 21 ISSN: 1467-9280 ISO Abbreviation: Psychol Sci Publication Date: 2010 Oct |
Date Detail:
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Created Date: 2010-10-12 Completed Date: 2011-01-26 Revised Date: 2011-09-26 |
Medline Journal Info:
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Nlm Unique ID: 9007542 Medline TA: Psychol Sci Country: United States |
Other Details:
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Languages: eng Pagination: 1502-9 Citation Subset: IM |
Affiliation:
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University of California, Davis, USA. ffarzin@stanford.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Age Factors Attention Awareness* Child Psychology* Crowding / psychology Discrimination (Psychology) Face Female Humans Male Orientation Pattern Recognition, Visual Psychophysics Saccades Space Perception* Visual Fields Visual Perception* |
| Grant Support | |
ID/Acronym/Agency:
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EY018216/EY/NEI NIH HHS; F31 MH083386-02/MH/NIMH NIH HHS; F31 MH083386-03/MH/NIMH NIH HHS; F31MH083386/MH/NIMH NIH HHS; R01 EY018216-04/EY/NEI NIH HHS; R01 EY018216-05/EY/NEI NIH HHS |
| Comments/Corrections | |
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