PSYC 235 Lecture Notes - Lecture 13: Hans Selye, Cortisol, Biofeedback

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Document Summary

Behavioural medicine: application of psychology to prevention, diagnosis, & treatment of medical disorders. Health psychology: role of stress & psychological factors on physical illness. Psychological factors (stress, personality styles) physiological changes disease. Psychological factors x vulnerability to disease physiological changes disease. Psychological factors health-related behaviours (smoking, sleep) disease. Uncontrollable: higher stress response when beyond our control. Unpredictable: natural disasters, accidents, illnesses, job loss, financial collapse. Change/challenge capabilities or self-concepts: marriage, exams, new relationships, a tough new job. Stressful events trigger physiological reactions (fight or flight) Increase cardiovascular response: endocrine response: hpa axis. Hippocampus: next to the hypothalamus, sensitive to cortisol, stores emotional memories, helps turn stress response off. Results in significant health problems including ulcers & atrophy of immune system. General adaptation syndrome: theorize that there are various stages of response. Sapolsky & meaney: stress causes brain damage. Chronic high cortisol kills cells in hippocampus. Key part of (cid:272)ortisol feed(cid:271)a(cid:272)k loop: hippo(cid:272)a(cid:373)pus (cid:862)tur(cid:374)s off(cid:863) stress respo(cid:374)se.

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