Document Detail

Perception of the symmetrical patterning of human gait by infants.
MedLine Citation:
PMID:  12090485     Owner:  NLM     Status:  MEDLINE    
Two experiments tested 3- and 5-month-old infants' sensitivity to properties of point-light displays of human gait. In Experiment 1, infants were tested for discrimination of point-light displays of a walker and a runner, which, although they differed in many ways, were equivalent with regard to the phasing of limb movements. Results revealed that 3-month-old, but not 5-month-old, infants discriminated these displays. In Experiment 2, the symmetrical phase-patterning of the runner display was perturbed by advancing two of its limbs by 25% of the gait cycle. Both 3- and 5-month-old infants discriminated the walker display from this new phase-shifted runner display. These findings suggest that 3-month-old infants respond to the absolute and relative motions within a single limb, whereas 5-month-old infants respond primarily to the relations between limbs and, in particular, to the bilateral symmetry between the limbs.
Amy E Booth; Bennett I Bertenthal; Jeannine Pinto
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Developmental psychology     Volume:  38     ISSN:  0012-1649     ISO Abbreviation:  Dev Psychol     Publication Date:  2002 Jul 
Date Detail:
Created Date:  2002-07-01     Completed Date:  2003-01-15     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0260564     Medline TA:  Dev Psychol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  554-63     Citation Subset:  IM    
Department of Psychology, Northwestern University, Evanston, Illinois 60208-2710, USA.
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MeSH Terms
Habituation, Psychophysiologic / physiology
Lower Extremity / physiology
Random Allocation
Walking / physiology*
Grant Support

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