Control over videotape enrichment for socially housed chimpanzees (2000)

Bloomsmith, M. A., Lambeth, S. P., Perlamn, J. E. et al.

Abstract

Social behavior and solitary play were higher in subjects with control over the onset of videotapes, while scratching [generally regarded as a sign of tension] was higher in those groups who lacked control. The results indicate that giving chimpanzees control over videotaped enrichment had limited, but positive, effects on behavior.