The social development of a female rhesus monkey was followed from birth until death, age 32 months. The monkey had an extra autosome and was hydrocephalic. The monkey showed serious motor deficiencies, delayed social development, poorly established dominance relationships, and heavy dependence on mother and kin. The monkey was, however, well…

A multifaceted model to promote peer play was implemented with play groups including 3 children (ages 6-8) with autism, resulting in decreased isolate play and collateral gains in social play, and decreased stereotyped object play and collateral gains in functional object play. Advances in play behaviors were generalized and were accompanied by…