Document Detail

Two languages, one developing brain: event-related potentials to words in bilingual toddlers.
MedLine Citation:
PMID:  16445386     Owner:  NLM     Status:  MEDLINE    
Infant bilingualism offers a unique opportunity to study the relative effects of language experience and maturation on brain development, with each child serving as his or her own control. Event-related potentials (ERPs) to words were examined in 19- to 22-month-old English-Spanish bilingual toddlers. The children's dominant vs. nondominant languages elicited different patterns of neural activity in the lateral asymmetry of an early positive component (P100), and the latencies and distributions of ERP differences to known vs. unknown words from 200-400 and 400-600 ms. ERP effects also differed for 'high' and 'low' vocabulary groups based on total conceptual vocabulary scores. The results indicate that the organization of language-relevant brain activity is linked to experience with language rather than brain maturation.
Barbara T Conboy; Debra L Mills
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Developmental science     Volume:  9     ISSN:  1363-755X     ISO Abbreviation:  Dev Sci     Publication Date:  2006 Jan 
Date Detail:
Created Date:  2006-01-31     Completed Date:  2006-09-15     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  9814574     Medline TA:  Dev Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  F1-12     Citation Subset:  IM    
Center for Research in Language, University of California, San Diego, USA.
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MeSH Terms
Acoustic Stimulation
Analysis of Variance
Brain / growth & development*
Evoked Potentials / physiology*
Grant Support
5 R01-DC0048111/DC/NIDCD NIH HHS

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