PSYB64H3 Chapter Notes - Chapter 9: Korey Stringer, Raynaud Syndrome, Sympathetic Nervous System
Document Summary
Physiological state of equilibrium or balance set point: value that is defended by regulatory systems, such as core temperature or particular body weight. Deviations from body"s ideal values of temperature, fluid levels, or weight rapidly assessed by nervous system. Once deficit recognized, makes appropriate internal adjustments and motivates behaviour to regain ideal state motivation: process of activating and directing behaviour. Activates behaviour by generating tension and discomfort in form of drive states (like thirst or hunger) then initiate behaviour to solve specific problem. Ensure that motivation is specific to getting food, or seeking water to drink, action won"t be random systems maintaining homeostasis isn"t full proof. Reaction to this info involves complicated set of psychological and biological processes. Extreme temperatures limit life through impact on chemical properties of living cells. Too low = ice crystals form in cells and damage cell membrane.
