Document Detail

Cry threshold predicts regulatory disorder in newborn infants.
MedLine Citation:
PMID:  8990725     Owner:  NLM     Status:  MEDLINE    
Studied the autonomic regulation of 37 infants with a typical cry threshold and 17 infants with a high cry threshold (typical of problems in nervous system function). Infants with a high cry threshold had a longer latency to cry, a shorter first cry sound, and a shorter overall bout of crying. Spectrum analysis of 2 hours of heart rate variability showed that a high cry threshold was predictive of fewer reliable rhythms and a lower power of the basic 40-min rhythm in heart rate. High cry threshold infants also showed fewer startles and changes in behavioral state. Results suggest a high cry threshold predicts disrupted autonomic regulation and poor coordination among rhythmic systems affecting cardiac activity.
P S Zeskind; T R Marshall; D M Goff
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of pediatric psychology     Volume:  21     ISSN:  0146-8693     ISO Abbreviation:  J Pediatr Psychol     Publication Date:  1996 Dec 
Date Detail:
Created Date:  1997-01-30     Completed Date:  1997-01-30     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7801773     Medline TA:  J Pediatr Psychol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  803-19     Citation Subset:  IM    
Virginia Polytechnic Institute and State University, USA.
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MeSH Terms
Autonomic Nervous System Diseases / physiopathology*
Crying / physiology*
Heart Rate / physiology
Homeostasis / physiology*
Infant Behavior*
Infant, Newborn / physiology*
Predictive Value of Tests
Reaction Time
Sensory Thresholds*

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