Rearing Infant Rhesus Together

Abstract

AbstractTo analyze the antecedent conditions of the together-together syndrome, 6 subjects were reared in pairs, 6 in pairs separated on alternate weeks, 6 in pairs which changed in composition weekly, 6 in a group of 6, and 6 in individual cages. When tested in groups of 6 during the first year of life and with infants, juveniles, and adults during the second year of life, it was found that (a) self-play and social play increased and self-cling and aggression decreased as an increasing function of the number of rearing partners; (b) social cling was greatest in subjects reared constantly with the same animals, and was independent of the amount of play exhibited by a group.