Diurnal variations in mother-infant separation and sleep in two species of macaque.
- 1 October 1964
- journal article
- research article
- Published by American Psychological Association (APA) in Journal of Comparative and Physiological Psychology
- Vol. 58 (2) , 330-332
- https://doi.org/10.1037/h0044237
Abstract
The degree of cohesiveness within mother-infant dyads of Macaca nemestrina (pigtails) and Macaca radiata (bonnets) measured in terms of the physical separation separation between them, was studied in laboratory groups throughout 24-hr. periods. In both species cohesiveness was greatest at 5 A.M. when sleeping was at its peak. The pigtail dyads were significantly less cohesive prior to feeding. They also showed a greater tendency to assume a recumbent posture during sleep. These differences in dyadic patterning appear consistent with observed differences in the general behavior of these species.Keywords
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