The work of four task forces on human deprivation is reported. Aspects of deprivation treated include psychosocial deprivation and personality development; influences of biological, psychological, and social deprivations upon learning and performance; socialization and social structure; and biological substrates of development and behavior. For each aspect, research is reviewed and suggestions are made for future research. Also provided is a synthesis of a 2-day conference on research policy for psychosocial deprivation which concerned itself with the areas mentioned above. (JD)