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| Day, R. H. | 2 |
| Schwartz, Marcelle | 1 |
| Shinkfield, Alison J. | 1 |
| Sparrow, W. A. | 1 |
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| Reports - Research | 2 |
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Peer reviewedSchwartz, Marcelle; Day, R. H. – Monographs of the Society for Research in Child Development, 1979
The ability of young infants between the ages of 8 and 17 weeks to perceive outline shapes was investigated in nine experiments using an habituation paradigm. (JMB)
Descriptors: Cognitive Processes, Eye Fixations, Infants, Perceptual Development
Shinkfield, Alison J.; Sparrow, W. A.; Day, R. H. – American Journal on Mental Retardation, 1997
Visual discrimination and motor reproduction tasks involving computer-simulated arm movements were administered to 12 adults with mental retardation and a gender-matched control group. The purpose was to examine whether inadequacies in visual perception account for the poorer motor performance of this population. Results indicate both perceptual…
Descriptors: Adults, Mental Retardation, Motor Development, Perceptual Motor Coordination
