Document Detail


Addition and subtraction by human infants.
MedLine Citation:
PMID:  1508269     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Human infants can discriminate between different small numbers of items, and can determine numerical equivalence across perceptual modalities. This may indicate the possession of true numerical concepts. Alternatively, purely perceptual discriminations may underlie these abilities. This debate addresses the nature of subitization, the ability to quantify small numbers of items without conscious counting. Subitization may involve the holistic recognition of canonical perceptual patterns that do not reveal ordinal relationships between the numbers, or may instead be an iterative or 'counting' process that specifies these numerical relationships. Here I show that 5-month-old infants can calculate the results of simple arithmetical operations on small numbers of items. This indicates that infants possess true numerical concepts, and suggests that humans are innately endowed with arithmetical abilities. It also suggests that subitization is a process that encodes ordinal information, not a pattern-recognition process yielding non-numerical percepts.
Authors:
K Wynn
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Nature     Volume:  358     ISSN:  0028-0836     ISO Abbreviation:  Nature     Publication Date:  1992 Aug 
Date Detail:
Created Date:  1992-09-22     Completed Date:  1992-09-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0410462     Medline TA:  Nature     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  749-50     Citation Subset:  IM    
Affiliation:
Department of Psychology, University of Arizona, Tucson 85721.
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MeSH Terms
Descriptor/Qualifier:
Cognition
Humans
Infant*
Mathematics*
Visual Perception
Comments/Corrections
Comment In:
Nature. 1992 Aug 27;358(6389):712-3   [PMID:  1508267 ]
Erratum In:
Nature 1993 Jan 28;361(6410):374
Nature 1992 Dec 24-31;360(6406):768

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


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