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Effects of Severe Isolation on "Normal" Juvenile ChimpanzeesHealth, Weight Gain, and Stereotyped Behaviors
RICHARD K. DAVENPORT, JR., PhD;
EMIL W. MENZEL, JR., PhD;
CHARLES M. ROGERS, PhD
Arch Gen Psychiatry. 1966;14(2):134-138.
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EARLY MATERNAL deprivation and impoverished environments have been reported to produce dire consequences for the human infant. Deprived infants are said to weigh considerably less, be more susceptible to disease, and show a higher mortality rate than normally-reared infants.1-4 In addition, a variety of behavioral anomalies have been related to inadequacies, particularly social, in the early environment.5-7
Because of the physical and psychosocial similarities between chimpanzees and man, and the greater possibilities of experimental manipulation with nonhuman Ss5,8 we have undertaken the systematic study of maternal deprivation in the chimpanzee.6,9,10 In previous studies, most infants were isolated from social beings and inanimate objects beginning on day 1 post partum. Results indicated that in terms of mortality rate, physical health, and weight gain, deprivation had no adverse consequence for the chimpanzee. Indeed, even infants raised in our (maximally restricted) environments weigh more
. . . [Full Text PDF of this Article]
Author Affiliations
ATLANTA
From the Yerkes Regional Primate Research Center of Emory University, Atlanta. Dr. Menzel is now at the Delta Regional Primate Research Center of Tulane University, Covington, La.
Footnotes
Submitted for publication Aug 9, 1965.
Reprint requests to Yerkes Regional Primate Research Center of Emory University, Atlanta 30322 (Dr. Davenport).
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