Document Detail


Reasoning about containment events in very young infants.
MedLine Citation:
PMID:  11124350     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The present research examined very young infants' expectations about containment events. In Experiment 1, 3.5-month-old infants saw a test event in which an object was lowered inside a container with either a wide opening (open-container condition) or no opening (closed-container condition) in its top surface. The infants looked reliably longer at the closed- than at the open-container test event. These and baseline data suggested that the infants recognized that the object could be lowered inside the container with the open but not the closed top. In Experiment 2, 3.5-month-old infants saw a test event in which an object was lowered either behind (behind-container condition) or inside (inside-container condition) a container; next, the container was moved forward and to the side, revealing the object behind it. The infants looked reliably longer at the inside- than at the behind-container test event. These and baseline results suggested that the infants in the inside-container condition realized that the object could not pass through the back wall of the container and hence should have moved with it to its new location. Experiments 3 and 4 extended the results of Experiments 1 and 2 to 2.5-month-old infants. Together, the present results indicate that even very young infants possess expectations about containment events. The possible origins and development of these expectations are discussed in the context of Baillargeon's model (Advances in infancy research 9 (1995) 305. Norwood, NJ: Ablex) of infants' acquisition of physical knowledge, and of Spelke's proposal (Cognition 50 (1994) 431) that, from birth, infants interpret physical events in accord with a solidity principle.
Authors:
S J Hespos; R Baillargeon
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Cognition     Volume:  78     ISSN:  0010-0277     ISO Abbreviation:  Cognition     Publication Date:  2001 Mar 
Date Detail:
Created Date:  2001-01-26     Completed Date:  2001-06-07     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0367541     Medline TA:  Cognition     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  207-45     Citation Subset:  IM    
Affiliation:
Department of Brain and Cognitive Science, NE20-423, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. hespos@mit.edu
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MeSH Terms
Descriptor/Qualifier:
Awareness*
Child Psychology*
Depth Perception
Female
Humans
Infant
Male
Problem Solving*
Psychophysics
Visual Perception*
Grant Support
ID/Acronym/Agency:
F32 HD008124-01/HD/NICHD NIH HHS; F32 HD008124-02/HD/NICHD NIH HHS; HD-08124/HD/NICHD NIH HHS; HD-21104/HD/NICHD NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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