The manifestation of "learned helplessness" in rats with various capacities for active avoidance.
A riddance deficit in the shuttle chamber after unavoidable and avoidable stressor influences has been recorded in rats of two lines that differ in the capacity to form active avoidance: the KHA line-rats with a high rate of learning, and KLA-rats which learn poorly. Unavoidable stress leads to a riddance deficit only in KHA rats, whereas avoidable stress forms it only in KLA rats. It is hypothesized that "learned helplessness" represents a pathology of adaptive behavior, if unavoidable stress is applied to KHA rats, while in KLA rats., it is one of the forms of adaptive behavior as a result of avoidable stress.
Laboratory of the Physiology and Pathology of the Endocrine System, I.P. Pavlov Institute of Physiology, Saint Petersburg.
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Zhukov
D000818:Animals; D001362:Avoidance Learning / Q000502:physiology*; D006380:Helplessness, Learned; D008297:Male; D051381:Rats; D011919:Rats, Inbred Strains; D013315:Stress, Psychological / Q000503:physiopathology / Q000523:psychology