Document Detail


Timing in the baby brain.
MedLine Citation:
PMID:  15464354     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Ten-month-old infants and adults were tested in an auditory oddball paradigm in which 50-ms tones were separated by 1500 ms (standard interval) and occasionally 500 ms (deviant interval). Both infants and adults showed marked brain responses to the tone that followed a deviant inter-stimulus interval (ISI). Specifically, the timing-deviance event-related-potential (ERP) difference waves (deviant-ISI ERP minus standard-ISI ERP) yielded a significant, fronto-centrally distributed, mismatch negativity (MMN) in the latency range of 120-240 ms post-stimulus for infants and 110-210 ms for adults. A robust, longer latency, deviance-related positivity was also obtained for infants (330-520 ms), with a much smaller and later deviance-related positivity observed for adults (585-705 ms). These results suggest that the 10-month-old infant brain has already developed some of the same mechanisms as adults for detecting deviations in the timing of stimulus events.
Authors:
Elizabeth M Brannon; Lauren Wolfe Roussel; Warren H Meck; Marty Woldorff
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Brain research. Cognitive brain research     Volume:  21     ISSN:  0926-6410     ISO Abbreviation:  Brain Res Cogn Brain Res     Publication Date:  2004 Oct 
Date Detail:
Created Date:  2004-10-06     Completed Date:  2005-03-07     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  9214304     Medline TA:  Brain Res Cogn Brain Res     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  227-33     Citation Subset:  IM    
Affiliation:
Center for Cognitive Neuroscience, Duke University, Box 90999, Durham, NC 27708-0999, USA. brannon@duke.edu
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MeSH Terms
Descriptor/Qualifier:
Acoustic Stimulation / methods
Adolescent
Adult
Age Factors
Brain / physiology*,  radiation effects
Brain Mapping*
Electroencephalography / methods
Evoked Potentials, Auditory / physiology*
Female
Humans
Infant
Male
Time Factors
Time Perception / physiology*
Grant Support
ID/Acronym/Agency:
R01 MH 60415/MH/NIMH NIH HHS; R03 MH 64955/MH/NIMH NIH HHS

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


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