Document Detail

Physiological self-regulation and information processing in infancy: cardiac vagal tone and habituation.
MedLine Citation:
PMID:  10834463     Owner:  NLM     Status:  MEDLINE    
This study investigates the role of physiological self-regulation (cardiac vagal tone) in information processing (habituation) in 81 infants. Nucleus ambiguus vagal tone (Vna, a measure of respiratory sinus arrhythmia) was used to index cardiac vagal tone. Physiological self-regulation was operationalized as the change in Vna from a baseline period of measurement to habituation. Decreases in Vna consistently related to habituation efficiency, operationalized as accumulated looking time (ALT), in all infants twice at 2 months and twice at 5 months; however, this relation was accounted for by infants who met an habituation criterion on each task. Among habituators, shorter lookers also had greater Vna suppression during habituation. Within-age and between-age suppression of vagal tone predicted ALT, but ALT did not predict suppression of vagal tone. Physiological self-regulation provided by the vagal system appears to play a role in information processing in infancy as indexed by habituation.
M H Bornstein; P E Suess
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Child development     Volume:  71     ISSN:  0009-3920     ISO Abbreviation:  Child Dev     Publication Date:    2000 Mar-Apr
Date Detail:
Created Date:  2000-09-26     Completed Date:  2000-09-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0372725     Medline TA:  Child Dev     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  273-87     Citation Subset:  IM    
Child and Family Research, National Institute of Child Health and Human Development, Bethesda, MD 20892, USA.
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MeSH Terms
Child Development / physiology*
Cognition / physiology*
Habituation, Psychophysiologic / physiology*
Heart Rate / physiology*

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