Document Detail


Language acquisition in premature and full-term infants.
MedLine Citation:
PMID:  20133589     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We tested healthy preterm (born near 28 +/- 2 weeks of gestational age) and full-term infants at various different ages. We compared the two populations on the development of a language acquisition landmark, namely, the ability to distinguish the native language from a rhythmically similar one. This ability is attained 4 months after birth in healthy full-term infants. We measured the induced gamma-band power associated with passive listening to (i) the infants' native language (Spanish), (ii) a rhythmically close language (Italian), and (iii) a rhythmically distant language (Japanese) as a marker of gains in language discrimination. Preterm and full-term infants were matched for neural maturation and duration of exposure to broadcast speech. We found that both full-term and preterm infants only display a response to native speech near 6 months after their term age. Neural maturation seems to constrain advances in speech discrimination at early stages of language acquisition.
Authors:
Marcela Peña; Enrica Pittaluga; Jacques Mehler
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-02-02
Journal Detail:
Title:  Proceedings of the National Academy of Sciences of the United States of America     Volume:  107     ISSN:  1091-6490     ISO Abbreviation:  Proc. Natl. Acad. Sci. U.S.A.     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-02-25     Completed Date:  2010-04-05     Revised Date:  2010-09-27    
Medline Journal Info:
Nlm Unique ID:  7505876     Medline TA:  Proc Natl Acad Sci U S A     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3823-8     Citation Subset:  IM    
Affiliation:
Cognitive Neuroscience Sector, Scuola Internazionale Superiore di Studi Avanzati, Trieste 34014, Italy. pena@sissa.it
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MeSH Terms
Descriptor/Qualifier:
Humans
Infant
Infant, Newborn
Infant, Premature / psychology*
Language Development*
Comments/Corrections

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