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Eye movement during sleep and waking in infant monkeys ( Macaca mulatta ) deprived of patterned vision
Author(s) -
Berger Ralph J.,
Meier Gilbert W.
Publication year - 1968
Publication title -
developmental psychobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.055
H-Index - 93
eISSN - 1098-2302
pISSN - 0012-1630
DOI - 10.1002/dev.420010409
Subject(s) - eye movement , audiology , psychology , rapid eye movement sleep , developmental psychology , medicine , neuroscience
Five newborn rhesus monkeys deprived of patterned vision and 4 normal‐sighted controls were reared until 18 months of age. There was a significant decrease in frequency of rapid eye movement (REM) in both groups with increasing age. Frequency of REM tended to be lower in experimental monkeys than in controls. Asymmetries in velocity of waking, horizontal eye movement were evident in experimental monkeys, and the velocity of REMs was less in pattern‐deprived monkeys than in controls. Nonsequential interval histograms between REMs at 18 months of age differed significantly from a random exponential distribution in both groups. Pattern‐deprived monkeys had significantly fewer short intervals between REMs than controls. Visual tests showed the pattern‐deprived monkeys to be behaviorally blind on removal of their eye occluders at 18 months of age.