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Article
November 1973

Can Psychopathology Be Reinduced in Rhesus Monkeys?An Experimental Investigation of Behavorial Sensitization

Author Affiliations

Madison, Wis
From the Department of Psychiatry and Primate Laboratory (Dr. McKinney); the Department of Psychology (Dr. Suomi); and the Primate Laboratory (E. Moran), the University of Wisconsin, Madison, and the Department of Psychiatry, the University of Wisconsin School of Medicine, Madison (Dr. Kliese).

Arch Gen Psychiatry. 1973;29(5):630-634. doi:10.1001/archpsyc.1973.04200050043007
Abstract

The problem investigated was whether one experience of profound environmental deprivation early in development would influence the response of rhesus monkeys to a subsequent period of deprivation.

Subjects with a history of previous vertical chamber confinement were tested 1½ years later and compared with control subjects with no prior history of environmental deprivation. Monkeys with a history of early chamber confinement exhibited residual effects 1½ years after their initial experience but before reentering the chamber. Furthermore, the current chambering experience had a significant impact in terms of producing decreased environmental activity and increased passivity.

Effects of the current chambering experience occurred whether or not individual subjects had had a prior experience. These data contrast with previous studies which indicate prior separation to be a high risk-predisposing event in rhesus monkeys.

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