PSYC 328 Lecture Notes - Lecture 9: Stress (Biology), Walter Bradford Cannon, Endocrinology

• School: McGill University
• Department: Psychology
• Course: PSYC 328
• Professor: barbelknauper-healthpsyc

Document Summary

Predictable biochemical, physiological, cognitive, and behavioural changes in. Types of stressor traffic) order to alter stressful event or accommodate its effects. Physical all animals experience ((heat cold pain fatigue injury hunger. Acute: immediate attention but short lasting (many physical stressors are predators) acute but not all e. g. pop quizzes) Chronic: constant source of worry, long term (most psyc are chronic but also physical like pain or famine can be chronic) 1) walter cannon: flight or flight behaviour. Physiological reactions that animals have in response to a threat (in order to quickly mobilize the body to fight or run away) Blood to muscles, heavy breathing to fuel oxygen. Problem: disrupts normal body functioning (processes not immediately needed are slowed down e. g. digestion) 2) hans seyle: general adaptation syndrome effect of particular ovarian extract on rats so he injected rats with the extract however, when he reached into cage he dropped the rat into the lab so he.