PSYC 2060U Study Guide - Midterm Guide: Sex Steroid, Neuropeptide Y, Homeostasis
Document Summary
Motivation: dynamics of behaviour that initiate, sustain, direct, and terminate actions. Incentive value: (incentive theory of motivation: goal"s appeal beyond its ability to fill a need. Primary motive: innate (inborn) motives based on biological needs that must be met for survival. Stimulus motive: innate needs for stimulation and information. Secondary motive: based on learned needs, drives, and goals. Biological drives are essential because they maintain homeostasis. Homeostasis (hoe-me-oh-stay-sis): a steady state of bodily equilibrium. Optimal levels exist for body temperature, for chemicals in the blood, for blood pressure, and so forth. Hypothalamus: brain structure; regulates many aspects of motivation and emotion, including hunger, thirst, and sexual behaviour. Feeding system: area in the hypothalamus that, when stimulated, initiates eating. Satiety system: area in the hypothalamus that terminates eating. Neuropeptide y: a substance in the brain that initiates eating. Glucagon-like peptide: a substance in the brain that terminates eating.
