Nocturnal sleep in isolation-reared monkeys: evidence for enviromental independence.
Dev Psychobiol, 1977/11;10(6):555-61.
PMID: 413757
Impact factor: 2.531
Abstract
Thirteen all-night recordings were obtained from 3 infant pigtailed (Macaca nemestrina) monkeys raised on a cloth surrogate mother and under conditions of social isolation. Totally implantable biotelemetry systems were used to record the sleep physiology from the unrestrained animals. Sleep stages and night-to-night variability were virtually identical to values previously found in 8 mother-reared group-living infants. Sustained alterations in the early rearing enviroment, even though considerably modifying the organism's development, did not appear to result in differences in sleep organization.
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