PSY352H5 Chapter 3: Chapter 3 Study Guide
Document Summary
Behaviors can be thought of having underlying motivations. These may be internal or external to the individual (or both). Levels of motivation relating to homeostasis are regulated in accordance to need by a range of physiological mechanisms. *** variations in motivation tend to increase fitness. Many behaviors are expressed according to a distinct temporal pattern. They occur with a regular periodicity and are controlled by biological clocks. There is a genetic component to the control of biological rhythms, but their cycling is also controlled to some extent by internal and external environmental cues. Our bodies have a built in system of regulators that maintain our internal environment at the peak of operating efficiency. Homeostasis: being the coordinated physiological processes that maintain an animal"s body at a steady state relative to its environment. It involves the cooperative actions of the sensory system, the brain, and the organs of the body. Whether anticipatory or responsive, conditions cause a change in behavior.
