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Social development in nursery-reared pigtailed macaques (Macaca nemestrina) by Julie M. Worlein; Gene P. Sackett is a Psychology article available to read on EtoBox.

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The social development of 240 nursery-reared pigtailed macaques (Macaca nemestrina) was studied from postnatal weeks 4 to 32. The objectives of the study were to document developmental trends and evaluate social behavior in laboratory-reared M. nemestrina raised at the University of Washington Infant Primate Laboratory, and to identify husbandry factors that might affect early social development. Only infants who had not undergone invasive postnatal experimental manipulation and had no chronic illness or injuries were included in the study. Infants were separated from their mothers and housed singly, but had access to peers for 30 min a day, 5 days a week, in a large playroom. Play and social behaviors emerged early in development, increased during the developmental period studied and occupied a large portion of the infants' time budgets. Although disturbance behaviors occurred with some frequency and duration early in development, they occupied a very small portion of the infants' time budget at 8 months of age. Weaning from infant formula at 16-19 weeks retarded development of play behavior. Permanent removal of a cloth comforter (diaper) during weeks 20-24 had no long-term behav

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Author

Julie M. Worlein; Gene P. Sackett

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0275-2565)

Published

1997

Language

EN

Field

Psychology (Social Sciences)