Document Detail

Infants' knowledge about occlusion and containment events: a surprising discrepancy.
MedLine Citation:
PMID:  11340923     Owner:  NLM     Status:  MEDLINE    
The present research examined whether infants acquire general principles or more specific rules when learning about physical events. Experiments 1 and 2 investigated 4.5-month-old infants' ability to judge how much of a tall object should be hidden when lowered behind an occluder versus inside a container. The results indicated that at this age infants are able to reason about height in occlusion but not containment events. Experiment 3 showed that this latter ability does not emerge until about 7.5 months of age. The marked discrepancy in infants' reasoning about height in occlusion and containment events suggests that infants sort events into distinct categories, and acquire separate rules for each category.
S J Hespos; R Baillargeon
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Psychological science     Volume:  12     ISSN:  0956-7976     ISO Abbreviation:  Psychol Sci     Publication Date:  2001 Mar 
Date Detail:
Created Date:  2001-05-08     Completed Date:  2001-06-07     Revised Date:  2011-05-20    
Medline Journal Info:
Nlm Unique ID:  9007542     Medline TA:  Psychol Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  141-7     Citation Subset:  IM    
Department of Brain and Cognitive Sciences, M.I.T. NE20-423, Cambridge, MA 02139, USA.
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MeSH Terms
Age Factors
Analysis of Variance
Association Learning*
Child Development*
Concept Formation*
Grant Support

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