Document Detail

Functional analysis of spontaneous movements in preterm infants.
MedLine Citation:
PMID:  7926280     Owner:  NLM     Status:  MEDLINE    
Spontaneous movements of premature infants between 25 and 34 weeks conceptional age were observed for 1 hr on two or three occasions. Subjects had low-risk prognoses and were clinically stable at the time of testing. Behavioral acts were scored using a 0/1 time sampling technique in 60 continuous, 1-min time blocks. Temporal associations between individual movements were found using chi-square analyses. Some associated behaviors contained combinations consistent with neonatal action patterns, for example, single and bilateral leg kicking, head turning, and mouthing. Features of state organization were also evident in that general motor activity (GM), which has been used as a marker of active sleep (AS) in neonates, was found to cluster temporally with startle, facial, and head movements but not eye movements. Behavioral quiescence (> or = 5 s) was dissociated from AS-related behaviors (GM, facial, head, and eye movements). Combinations of state-segregated behaviors were more likely to exhibit co-occurrence within 1-min intervals in infants 30 weeks conceptional age and older.
M J Hayes; L S Plante; B A Fielding; S P Kumar; M Delivoria-Papadopoulos
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Developmental psychobiology     Volume:  27     ISSN:  0012-1630     ISO Abbreviation:  Dev Psychobiol     Publication Date:  1994 Jul 
Date Detail:
Created Date:  1994-11-02     Completed Date:  1994-11-02     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0164074     Medline TA:  Dev Psychobiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  271-87     Citation Subset:  IM    
Psychology Department, University of Maine, Orono 04469-5742.
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MeSH Terms
Arousal / physiology
Gestational Age
Infant, Newborn
Infant, Premature / physiology*
Motor Activity / physiology*
Muscle Contraction / physiology
Sleep Stages / physiology
Startle Reaction / physiology

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