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E. P. SELIGMAN, PH.D.1 Departments of Psychiatry and Psychology, University of Pennsylvania, Philadelphia, Pennsylvania Experimental psychologists interested in learning have traditionally studied the behavior of animals and men faced with rewards and punish ments that the subject could control. So, in a typical instrumental learning experiment, the subject can either make some response or refrain from mak ing it and thereby influence the events around him. Nature, however, is not always so benign in its arrangement of the contingencies. Not only do we face events that we can control by our actions, but we also face many events about which we can do nothing at all. Such uncontrollable events can sig nificantly debilitate organisms: they produce passivity in the face of trauma, inability to learn that responding is effective, and emotional stress in ani mals, and possibly depression in man. This review is concerned with the behavioral and psychological impact of uncontrollable traumatic events. Behavioral mani estations. When an experimentally naive dog receives f escape-avoidance training in a shuttle box, the following behavior typically occurs: at the onset of the first painful electric shock, the dog runs frantically about, defecating, urinating, and howling, until it accidentally scrambles over
Annual Review of Medicine – Annual Reviews
Published: Feb 1, 1972
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