EFFECTS OF THE AMOUNT OF REQUIRED COPING RESPONSE TASKS ON GASTROINTESTINAL LESIONS IN RATS

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概要

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• The effects of the coping response on gastrointestinal lesions by changing the values of fixed-ratio (FR) schedule for the coping response task in freeoperant avoidance situation over 24 hrs were studied. In FR 1 or FR 2, experimental animals which could control electric shock to avoid or escape by pushing a flapper only once or twice developed less severe gastrointestinal lesions and body weight loss than yoked animals which received the same amount of shocks but could not perform any coping responses. In FR 5 or FR 8, however, the experimental Ss developed more severe stress pathology than the yoked or control Ss. These reversal effect show that the interaction between controllability of experimental environment and the amount of required coping response task plays an important role, which seems to support Weiss's ulcerprediction model.

• 公益社団法人 日本心理学会の論文

著者

• 津田 彰

  上智大学

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• EFFECTS OF THE AMOUNT OF REQUIRED COPING RESPONSE TASKS ON GASTROINTESTINAL LESIONS IN RATS

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