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Lefford, Arthur; And Others – Child Development, 1974
The development of the ability to selectively oppose fingers to the thumb and to localize digits was studied in preschool children. Competence increased with age. Results are discussed in terms of the development of body schemata and neuropathological conditions. (ST)
Descriptors: Age Differences, Learning Problems, Perception, Physical Development

Whitall, Jill; Getchell, Nancy – Child Development, 1995
The locomotor skills of walking and running were compared in newly running infants at 5.5, 7.5, and 9.5 months of independent walking, and then again at 3 years of age. Collective variables showed transitional forms over the first few months of running, indicating a relatively continuous change across the two gait forms. (MDM)
Descriptors: Comparative Analysis, Developmental Stages, Longitudinal Studies, Physical Development

Ulrich, Beverly D.; Ulrich, Dale A. – Child Development, 1995
Compared the spontaneous leg movements of 10 infants with Down Syndrome to those of nondisabled infants matched for chronological age and motor age. Contrary to expectations, no significant difference was found in the frequency of leg movements between the two groups. However, Down Syndrome subjects demonstrated significantly fewer of the most…
Descriptors: Comparative Analysis, Disabilities, Downs Syndrome, Infant Behavior