The expression of feelings.
D000035:Abreaction; D000339:Affect; D000374:Aggression; D000786:Anger; D005069:Evaluation Studies as Topic; D005639:Frustration; D006801:Humans; D007398:Interpersonal Relations; D001523:Mental Disorders / Q000628:therapy; D009043:Motor Activity; D011574:Psychoanalytic Theory; D014705:Verbal Behavior