Stress and experimental ulcer: Critique of psychological literature

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Although several authors have claimed that the psychological procedures of conflict, conditioned fear, and avoidance could be used to develop ulcers in rats, the present authors' evaluation of these procedures suggests that the physical factors of shock and food deprivation were the primary agents responsible for the observed lesions. It is concluded that a convincing demonstration that psychological factors per se are sufficient to induce ulcers and the pathophysiological changes necessary for their formation is lacking at present in the experimental literature. (French summary) (49 ref) (PsycINFO Database Record (c) 2007 APA, all rights reserved)

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