Shifting patterns of bilateral coordination and lateral dominance in the leg movements of young infants
作者:
Esther Thelen,
Robyn Ridley‐Johnson,
Donna M. Fisher,
期刊:
Developmental Psychobiology
(WILEY Available online 1983)
卷期:
Volume 16,
issue 1
页码: 29-46
ISSN:0012-1630
年代: 1983
DOI:10.1002/dev.420160105
出版商: Wiley Subscription Services, Inc., A Wiley Company
数据来源: WILEY
摘要:
AbstractPatterns of interlimb coordination and lateral preference of spontaneous leg kicks were described for 8 normal human infants observed biweekly from 2 to 26 weeks of age. Newborn infants showed a high percentage of alternating movements, which were often supplanted by unilateral movements between 1 and 4 months. Simultaneous (in‐phase) kicks matured later than alternating kicks. No consistent lateral preferences were detected. The developmental course was marked by variability and discontinuities within each infant. We propose that asynchronous and asymmetrical maturation of subcortical tracts and/or muscle strength could account for these behavioral shift
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