PSY-1200 Chapter Notes - Chapter 32: Homeostasis, Ghrelin, Bypass Surgery
Document Summary
Module 32: motivation: a need or desire that energizes and directs behavior. There are 4 trends of it: instinctive and evolutionary psychology perspective. In darwinian times, people were naming behaviors as instincts. This quickly became irrelevant because this failed to explain their behaviors. Instinct: a rigid pattern of a species that is unlearned, commonly predisposed by genes: drives and incentives. This is replaced by drive reduction theory, which states that psychological needs create a drive that motivates organisms to satisfy those needs: need leads to drive which leads to a drive reducing behavior. This leads us back to an internal need: homeostasis: positive and negative stimulation motivates behavior away from stimulation sometimes, optimum arousal. At homeostasis, we are lead by behaviors (a la curiosity) that increase arousal. Too much stimulation leads to stress where we decrease this arousal: hierarchy of motives, more classic: we must fulfill more base needs before we can satisfy higher ones.