ERIC Number: ED072869
Record Type: RIE
Publication Date: 1972-Sep
Reference Count: 0
Parental Deprivation and the Development of Aggression.
The research on parental deprivation done at the Wisconsin primate laboratories and related laboratories is summarized. Social isolation and certain other social conditions were observed in their effects on aggressive behavior. Isolate-reared rhesus monkeys show more abnormality in postures and movements than do socially reared monkeys from infancy through puberty. Some of these abnormalities diminish in adulthood, but in any case they interfere with effective social communication and are therefore implicated in the development of aggression. The coo vocalization, used by the rhesus when there is a stimulus change, is emitted less frequently by infant and adult isolates than by socially reared monkeys; and, in addition, the coo is not used in appropriate contexts by isolates. Isolate-reared monkeys are defective in both sending and receiving facial expressions. Isolates use the fear grimace and the stare and open-mouth threats, which appear important in aggressive behavior, more frequently after puberty than do socially reared monkeys. Isolates are also defective in looking, the most frequently used mode of communication among rhesus monkeys. Isolates apparently do not develop a clear idea of self versus not self, and as they reach adulthood they direct more and more hostility toward the self. The failure to know the self may interfere with peaceful social communication more than anything else, and apparently the monkey can come to know himself only through interaction with others. Mature social isolates are incapable of using social objects to decrease their arousal and are thus intolerably excited by social stimulation, which, in turn, accentuates their abnormalities in communication. (KM)
Publication Type: N/A
Education Level: N/A
Sponsor: National Institutes of Health (DHEW), Bethesda, MD.
Authoring Institution: N/A
Note: Paper presented at the Annual Convention of the American Psychological Association (80th, Honolulu, Hawaii, September 1-8, 1972)