Document Detail

Attentional dynamics of infant visual foraging.
MedLine Citation:
PMID:  22733754     Owner:  NLM     Status:  MEDLINE    
Young infants actively gather information about their world through visual foraging, but the dynamics of this important behavior is poorly understood, partly because developmental scientists have often equated its essential components, looking and attending. Here we describe a method for simultaneously tracking spatial attention to fixated and nonfixated locations during free looking in 12-week-old infants using steady-state visual evoked potentials (SSVEPs). Using this method, we found that the sequence of locations an infant inspects during free looking reflects a momentary bias away from locations that were recently the target of covert attention, quickly followed by the redirection of attention--in advance of gaze--to the next target of fixation. The result is a pattern of visual foraging that is likely to support efficient exploration of complex environments by facilitating the inspection of new locations in real time.
Steven S Robertson; Sarah Enos Watamura; Makeba Parramore Wilbourn
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2012-06-25
Journal Detail:
Title:  Proceedings of the National Academy of Sciences of the United States of America     Volume:  109     ISSN:  1091-6490     ISO Abbreviation:  Proc. Natl. Acad. Sci. U.S.A.     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-07-11     Completed Date:  2012-10-05     Revised Date:  2013-07-12    
Medline Journal Info:
Nlm Unique ID:  7505876     Medline TA:  Proc Natl Acad Sci U S A     Country:  United States    
Other Details:
Languages:  eng     Pagination:  11460-4     Citation Subset:  IM    
Department of Human Development, Cornell University, Ithaca, NY 14853, USA.
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MeSH Terms
Attention / physiology*
Evoked Potentials, Visual
Fixation, Ocular*
Photic Stimulation / methods
Reaction Time / physiology*
Vision, Ocular
Visual Fields
Visual Perception / physiology*
Grant Support

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