Influence of age of weaning on the behaviour of rhesus monkeys (1988)

Goosen, C.

Abstract

Stereotypical locomotion was reduced by the presence of a social partner. ... Results also indicated that the rather early age of weaning of infants as practised in the course of the breeding procedure was an important factor in the induction of stereotyped locomotion and of self-directed infantile behaviour. Both these classes of abnormal behaviour persist into adulthood.