Nov.29.10 Lecture - Stress and Coping The Role of Perceived...

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Stress and Coping The Role of Perceived Control Prologue: what is perceived control? 1. Control deprivation in animals 2. Learned helplessness in people 3. Reactions to illness 4. Controlling our thoughts Chapter 3 & 4 Reading Prologue: What is perceived control? An expected response-outcome contingency: (if I do X, I will achieve outcome Y) Q: Is perceived control important? Part 1: Control deprivation in animals - Dogs in a shuttle-box (box divided into 2 sections by a barrier) Light Dog | Escape Shock (by jumping over the hurdle) Shock(applied 3 seconds) - The first dog learns such contingency pretty quick - Another dog in a shuttle-box - 10 seconds later the shock begins & accepts the shock - Both dogs were previously in the harness, both dogs applied same treatment. - One dog learned how to control to accept shock by moving its head - When that dog placed in the shuttle-box, it knew how to escape - The second dog learned that it had no control over the shock - It learned that it had no contingency over the shock - Subsequently, in the shuttle-box, the dog failed to learn this new contingency - Prior exposure to uncontrollable shock (in the harness) Learned Helplessness Additional findings: - LH occurs in a wide variety of animals;
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- Learned Helplessness generalize to new situations Eg. If dog learns that it can’t
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