PSYC 2240 Chapter 10: Chapter 10 Notes Biological Psychology.doc
8 May 2014
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Temperature regulation and other biological processes that keep body variables within a fixed range. Ex. thermostat in house with heating and cooling. When range is narrow between variables (ex. physiological and behavioral activities) Single value that the body works to maintain. Mechanisms in your body maintain constant blood levels of water, oxygen, glucose, sodium chloride, protein, fat and acidity. Processes that reduce discrepancies from the set point. Motivated behavior: something happens to cause disturbance, behavior varies until it relieves disturbance. Adaptive way in which the body changes its set points depending on situation. Animals and humans change temperate during day and body fat during seasons. Average young adult expends about 2600 kilocalories per day. Energy used to maintain a constant body temperature while at rest. Body temperate matches the temperature of the environment. Lack physiological mechanisms of temperature regulation (shivering and sweating) Maintain nearly constant body temperature despite changes in temperature of the environment.
