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March 1972

Vertical-Chamber Confinement of Juvenile-Age Rhesus Monkeys: A Study in Experimental Psychopathology

Author Affiliations

Madison, Wis
From the Department of Psychiatry, University of Wisconsin School of Medicine (Dr. McKinney) and the Department of Psychology, Primate Laboratory, University of Wisconsin (Drs. Suomi and Harlow), Madison.

Arch Gen Psychiatry. 1972;26(3):223-228. doi:10.1001/archpsyc.1972.01750210031006

Male rhesus monkeys (Macaca mulatta) 3 years of age were studied socially before and after ten weeks of confinement in a vertical-chamber apparatus designed to facilitate production of psychopathological disturbance. This study represents an initial effort to move beyond the use of young monkeys in a depression research program. Chamber confinement results in a significant increase in contact clinging between animals and a decrease in locomotion following removal from the apparatus. These behavior patterns are very atypical of laboratory-reared rhesus monkeys of this age and may represent a maturational regression induced by social means.

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