Document Detail

Do words facilitate object categorization in 9-month-old infants?
MedLine Citation:
PMID:  9126625     Owner:  NLM     Status:  MEDLINE    
Previous research reveals that novel words highlight object categories for preschoolers and infants as young as 12 months. Three experiments extend these findings to 9-month-olds. Infants were familiarized to slides of animals (e.g., rabbits). Infants in the Word condition heard infant-directed word phrases ("a rabbit") and infants in the Tone condition heard tones. During familiarization, infants' visual fixation was enhanced on trials with sounds (either words or tones), relative to silent trials. On test trials, a new exemplar from the familiar category (e.g., rabbit) was paired with a novel animal (e.g., pig). Infants in the Word condition showed greater attention to novelty than those in the Tone condition. A third group of infants who heard content-filtered words responded similarly to infants in the Word condition. Implications of the facilitative effects of words and content-filtered words on object categorization are discussed within a framework describing infants' emerging appreciation of language over the first year of life.
M T Balaban; S R Waxman
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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:  Journal of experimental child psychology     Volume:  64     ISSN:  0022-0965     ISO Abbreviation:  J Exp Child Psychol     Publication Date:  1997 Jan 
Date Detail:
Created Date:  1997-05-27     Completed Date:  1997-05-27     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  2985128R     Medline TA:  J Exp Child Psychol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  3-26     Citation Subset:  IM    
Department of Psychology, Johns Hopkins University, Baltimore, MD 21218, USA.
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MeSH Terms
Acoustic Stimulation
Analysis of Variance
Attention / physiology
Auditory Perception / physiology
Child Development / physiology
Concept Formation / physiology*
Habituation, Psychophysiologic / physiology
Intervention Studies
Language Development*
Speech Perception / physiology
Grant Support

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