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Lecture 17

Psychology 1000 Lecture 17: March 14

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Psychology 1000

March 14, 2017 Stress - The Stress Response Next Time: Freud - Psychosomatic Disorders Read: 524-531 FUCKING CHAPTER 14 - Traumatic Stress Stress: A pattern of physiological, behavioural, emotional, and cognitive responses to real or imagined stimuli that are perceived as blocking a goal or endangering our well-being Stress Process - Stressors Intervening factors Stress Reaction - Stressors - Catastrophes, life changes, daily hassles - Dealing with things and adjusting becomes stressful - If your score is over 200, it is considered chronic stress (each stressful event has a different score depending on how stressful they are) - Daily hassles can be additive - Intervening Factors - Appraisal, perceived control, personality, social support, coping - Things to help you cope with stress - If you don’t have control, you become more stressed - How do you handle stress? - Stress Reaction - Physiological response Emotional Response  Behavioural response Sense Stressor - Sympathetic NS is activated  Adrenal medulla is activated  Epinephrine is released - Stressor sends signal to hypothalamus which sends a signal to the anterior pituitary gland  Adrenal cortex  glucocorticoids (cortisol) - Cortisol - Effects similar to epinephrine - Converts protein to glucose - Makes fats available for energy - Increased blood flow - Almost every cell in the body has a receptor for cortisol - They can break down everything in the body as needed (very invasive) - Immune System - Stress can suppress the immune system, making the person more vulnerable - Stress results in the release of glucocorticoids which directly suppress the action of white blood cells - Support? - Rats faced with inescapable shock showed a decrease in lymphocyte production - Husbands show decreased immune response after wife’s death - This is one of the reasons why when one spouse dies, the other dies shortly after that - People are more likely to get sick a few days after exposure to stressful event - Acute infectious disorders increase during final exams - Note: Reaction depends on appraisal March 14, 2017 - Do you perceive the situation as a threat that you can cope with or not? - By convincing yourself that you have the ability to do something, you suppress the stress response Psychosomatic Disorders - Disorders with primarily physical symptoms that are caused or maintained by psychological factors Hypertension - Air traffic controllers are very susceptible to this - The older they get, the more stressed they get - Harder to work after age 45 Gastric Ulcers - Painful lesions of the stomach lignin - Over 500,000 new cases per year in Canada
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