Effects of social manipulations and environmental enrichment on behavior and cell-mediated immune responses in rhesus macaques (2002)

Schapiro, S. J.

Abstract

In general, enrichment of the inanimate environment with toys, structures, foraging devices, and/or videotapes increased the amount of species-typical behavior expressed by the monkeys, but did not affect their immune responses. Housing monkeys socially, on the other hand, not only resulted in increased time spent in species-typical activities, but also resulted in (1) decreases in time spent in abnormal behavior and (2) changes in a number of immune parameters.