Dictionary of Psychology

ability According action activity analysis animal anxiety approach associated attitude behavior believed body brain called caused cells characteristics characterized child color communication complex concept condition consisting dependent designed determine direction disorder effect emotional environment example experience experimental expression factors fear feelings function given goal human ideas increase individual influence interaction internal involving learning light means measure memory mental method motivation movement muscle nerve object observed occurs one's organism original particular patient pattern perceived perception performance period person physical position present principle problems produce psychology reaction refer reinforcement relationship response result role scale scores sensation sense sensory sexual similar situation social sound specific stage standard stimulus structure technique term theory therapy thinking thought tion trait usually variable visual