Effect of patterns of aversive and appetitive conditioned stimuli on the incidence of gastric lesions in the immobilized rat.
D000818:Animals; D001070:Appetitive Behavior; D001362:Avoidance Learning; D003213:Conditioning, Psychological; D003220:Conflict, Psychological; D004597:Electroshock; D005260:Female; D005502:Food; D006339:Heart Rate; D006801:Humans; D007103:Immobilization; D008027:Light; D008297:Male; D009622:Noise; D051381:Rats; D012201:Reward; D013276:Stomach Ulcer / Q000209:etiology*; D013315:Stress, Psychological; D013997:Time Factors