Psychology 2036A/B Lecture Notes - Lecture 5: Adrenal Cortex, Hans Selye, Walter Bradford Cannon

• School: Western University
• Department: Psychology
• Course: Psychology 2036A/B
• Professor: Doug Hazlewood

Document Summary

Part 1: two (early) approaches to defining stress. Part 2: early contributions: stress is a physiological response. Humans are not disturbed by events, but by he view they take of them epictetus. There is no such thing as good or bad, but thinking makes it so shakespeare. I face a tiger! (it is made of paper) hazlewood (when writing lectures) It"s a response to a stressor e. g. i feel stressed at exam time. Psychological (thoughts and feelings, aka distress, e. g. i"m nervous, anxious); Physiological (e. g. heart speeds up, mouth goes dry, stomach feels tight, you sweat/perspire: walter cannon (1932) Endocrine system (adrenal medulla) (adrenal medulla) secretes catecholamine"s (epinephrine & norepinephrine) arouse the body. Phase 1: alarm (body is aroused and mobilized for action) Phase 2: resistance (body adapts to stressor heart rate and perspiration goes down) if prolonged, diseases of adaptation (e. g. ulcers, high blood pressure) Phase 3: exhaustion (energy reserves depleted resistance is no longer possible)