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| Depth Perception | 1 |
| Infant Behavior | 1 |
| Infants | 1 |
| Motor Development | 1 |
| Perception Tests | 1 |
| Perceptual Development | 1 |
| Perceptual Motor Learning | 1 |
| Visual Environment | 1 |
| Visual Perception | 1 |
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| Journal of Experimental… | 1 |
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| Rader, Nancy | 1 |
| Richards, John E. | 1 |
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Peer reviewedRichards, John E.; Rader, Nancy – Journal of Experimental Psychology: Human Perception and Performance, 1981
Two experiments tested the effects of crawling-onset age, amount of crawling experience, and testing age on avoidance of the deep side of a visual cliff apparatus by human infants. Crawling-onset age disciminated between infants because crawling during the tactile phase interferes with later visual control of locomotion. (Author/RD)
Descriptors: Depth Perception, Infant Behavior, Infants, Motor Development
