Document Detail

Developmental trends in fetal habituation to vibroacoustic stimulation.
MedLine Citation:
PMID:  8442799     Owner:  NLM     Status:  MEDLINE    
Habituation is a measure of the ability to inhibit responding and is a more mature form of behavior than is persistent responding. We examined the developmental trend in habituation of the fetal startle response to repeated vibroacoustic stimulation in 90 normal human fetuses between 28 and 40 weeks of gestation. Fetal movement was graded according to the nature of the behavioral response: general startle (3), fast limb movement (2), slow rolling movement (1), and no movement (0). A significant developmental difference (p < 0.0004) in the rate of habituation was found, with response decrement occurring faster in fetuses of more than 32 weeks of gestation. Furthermore, by dividing the patients into three gestational age groups, it was determined that the greatest change in the rate of habituation occurred between 28 and 32 weeks and 32 and 36 weeks. We conclude that the rate of fetal habituation may be determined by the degree of maturation of the neural circuitry governing this form of nonassociative learning.
L J Groome; S J Gotlieb; C L Neely; M D Waters
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  American journal of perinatology     Volume:  10     ISSN:  0735-1631     ISO Abbreviation:  Am J Perinatol     Publication Date:  1993 Jan 
Date Detail:
Created Date:  1993-04-08     Completed Date:  1993-04-08     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8405212     Medline TA:  Am J Perinatol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  46-9     Citation Subset:  IM    
Department of Obstetrics and Gynecology, University of Alabama School of Medicine, Birmingham.
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MeSH Terms
Acoustic Stimulation*
Central Nervous System / embryology*
Embryonic and Fetal Development / physiology*
Fetal Movement / physiology
Fetal Organ Maturity
Gestational Age
Habituation, Psychophysiologic / physiology*
Startle Reaction / physiology

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

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