Document Detail

Learning perceptual organization in infancy: the effect of simultaneous versus sequential variability experience.
MedLine Citation:
PMID:  20698474     Owner:  NLM     Status:  MEDLINE    
Infants do not readily organize using form similarity: 6- to 7-month-olds familiarized with horizontal or vertical bars (filled rectangles) do not display a subsequent preference for a novel column versus row organization of X-O elements (Quinn and Bhatt, 2006 Journal of Experimental Psychology: Human Perception and Performance 32 1221-1230). In experiment 1, infants were familiarized with more complex bars composed of beads or crosshatches, and performance was again unsuccessful. In experiment 2, all three bar types were presented during familiarization and infants performed successfully, indicating that variability in pattern information depicting an invariant structure enhances the learning of perceptual organization. In experiment 3, we examined whether the manner in which variability is experienced (simultaneous versus sequential contrast) impacts this learning. One group of infants was familiarized with a single pattern containing the three different bar types (within-trial variability), and another was presented with the same three bar types, but with each appearing on a different trial (across-trial variability). Only the across-trial variability group performed successfully, suggesting that trial-to-trial change in local element information induced by sequential presentation is a significant factor in facilitating the learning of perceptual organization.
Paul C Quinn; Ramesh S Bhatt
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Perception     Volume:  39     ISSN:  0301-0066     ISO Abbreviation:  Perception     Publication Date:  2010  
Date Detail:
Created Date:  2010-08-11     Completed Date:  2010-12-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372307     Medline TA:  Perception     Country:  England    
Other Details:
Languages:  eng     Pagination:  795-806     Citation Subset:  IM    
Department of Psychology, University of Delaware, Newark, DE 19716, USA.
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MeSH Terms
Age Factors
Concept Formation / physiology*
Infant Behavior / physiology*,  psychology
Learning / physiology*
Pattern Recognition, Visual / physiology*
Statistics as Topic
Grant Support

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