Medical Subject Headings 1 adolescence 1 animal experiment 1 article 1 complex housing 1 decision making 1 expectation 1 female 1 housing 1 maternal deprivation 1 maternal deprivation model 1 motivation 1 nonhuman 1 operant liberation task 1 perinatal period 1 physiological stress 1 pro-social behavior 1 pro-social decision making prosocial behavior 1 rat 1 rats (all MESH terms) 1 rearing 1 reward 1 social development 1 social evolution 1