Conditioned immobility and ulcer development in rats.
D000818:Animals; D001362:Avoidance Learning; D001522:Behavior, Animal; D001835:Body Weight; D003216:Conditioning, Operant; D004597:Electroshock; D004924:Escape Reaction; D006801:Humans; D007103:Immobilization; D008297:Male; D009043:Motor Activity; D051381:Rats; D013276:Stomach Ulcer / Q000209:etiology*; D013315:Stress, Psychological