Reports

Visual Depth Perception of a 10-Month-Old Monocular Human Infant

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Science  17 Aug 1962:
Vol. 137, Issue 3529, pp. 529-530
DOI: 10.1126/science.137.3529.529

Abstract

A monocular infant tested on the "visual cliff" crawled over glass which had a patterned surface just beneath it and would not cross glass which had the same pattern 40 inches below its surface. Since this infant, using only monocular visual cues, was able to discriminate depth, the experiment disproves a general belief in the primacy of binocular cues in depth perception.

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