Document Detail

Quantitative competencies in infancy.
MedLine Citation:
PMID:  19046148     Owner:  NLM     Status:  MEDLINE    
We review recently published papers that have contributed to our understanding of how the preverbal infant represents number, area and time. We review evidence that infants rely on two distinct systems to represent number nonverbally and highlight the similarities in the ratio-dependent discrimination of number, time and area. Contrary to earlier assertions that continuous dimensions are more salient (and thus more discriminable) to the infant than numerosity, we argue that the opposite conclusion is better supported by the data. The preverbal infant may be better able to extract numerosity than continuous variables from arrays of discrete items.
Sara Cordes; Elizabeth M Brannon
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Developmental science     Volume:  11     ISSN:  1467-7687     ISO Abbreviation:  Dev Sci     Publication Date:  2008 Nov 
Date Detail:
Created Date:  2008-12-02     Completed Date:  2009-08-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9814574     Medline TA:  Dev Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  803-8     Citation Subset:  IM    
Duke University Center for Cognitive Neuroscience, Durham, NC 27708, USA.
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MeSH Terms
Child Development / physiology*
Discrimination Learning / physiology*
Problem Solving / physiology*
Visual Perception / physiology*

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

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