Document Detail

Similar and functionally typical kinematic reaching parameters in 7- and 15-month-old in utero cocaine-exposed and unexposed infants.
MedLine Citation:
PMID:  15054885     Owner:  NLM     Status:  MEDLINE    
This study examined the effects of intrauterine cocaine exposure on the reaches of 19 exposed and 15 unexposed infants at 7 and 15 months using kinematic measures. Infants sat at a table and reached for a rattle, a toy doll, and a chair. Videotaped reaches were digitized using the Peak Performance system. Kinematic movement variables were extracted (e.g., reach duration, peak velocity, movement units, path length) and ratios computed (e.g., path length divided by number of movement units). Regardless of exposure status, reaches of older infants were faster, more direct, had fewer movement units, and covered more distance with the first movement unit. Exposed infants covered more distance per movement unit than unexposed infants, but there were no other significant differences. Reaches of exposed and unexposed infants were essentially similar. Importantly, reach parameters for these high-risk infants were similar to reach parameters for infants at lower social and biological risk.
E Z Tronick; Linda Fetters; Karen L Olson; Yuping Chen
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Developmental psychobiology     Volume:  44     ISSN:  0012-1630     ISO Abbreviation:  Dev Psychobiol     Publication Date:  2004 Apr 
Date Detail:
Created Date:  2004-03-31     Completed Date:  2004-08-10     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0164074     Medline TA:  Dev Psychobiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  168-75     Citation Subset:  IM    
Copyright Information:
Copyright 2004 Wiley Periodicals, Inc.
Child Development Unit, Children's Hospital, 1295 Boylston Street, Suite 320, Boston, MA 02215, USA.
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MeSH Terms
Cocaine-Related Disorders*
Hand Strength / physiology*
Maternal Age
Maternal Behavior
Motor Skills Disorders / diagnosis*,  etiology*
Prenatal Exposure Delayed Effects*
Videotape Recording
Grant Support
5R01 DA 06882-03/DA/NIDA NIH HHS

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

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