PSYC 110 Lecture 14: Homeostasis
1 Dec 2016
School
Department
Course
Professor
Document Summary
Internal regulation: homeostasis - active process of maintaining a relatively stable, balanced internal environment. Negative feedback systems are the primary homeostatic mechanisms. Motivation is the psychological process that induces or sustains a particular behavior. Deviation from the set zone results in compensatory action: allostasis - adaptive way in which the body changes its set point in response to changes in life or the environment. Thermoregulation: thermoregulation - the active process of closely regulating body temperature around a set value. Multiple systems for regulating the internal environment. Uses about two-thirds of our energy/kilocalories per day: basal metabolism is the energy used to maintain a constant body temperature while at rest, mammals evolved to have a constant temperature of 37 degrees celsius (98 degrees. Muscle activity bene ts from being as warm as possible and ready for vigorous activity. Proteins in the body break their bonds and lose their useful properties at higher temperatures.
