Depression and learned helplessness in man.
D000161:Acoustic Stimulation; D000818:Animals; D001007:Anxiety; D001362:Avoidance Learning; D003863:Depression; D004924:Escape Reaction; D005260:Female; D006791:Hostility; D006801:Humans; D008297:Male; D008960:Models, Psychological; D011340:Problem Solving; D011930:Reaction Time