PSYC 111 Lecture Notes - Lecture 18: Basal Metabolic Rate, Orgasm, Ghrelin

• School: Binghamton University
• Department: Psychology
• Course: PSYC 111
• Professor: dr.duell

Document Summary

Psyc 111 - lecture 18 - chapter 11 overview. Motivation: a need or desire that energizes and directs behavior. Instinct theory think evolution = instincts focuses on genetically predisposed behavior. How we respond to our inner drives. Our inner drives - the incentives that arouse us and motivate us. Goal of homeostasis focus on finding the right level of stimulation. Yerkes-dodson law - moderate level of arousal leads to optimal performance. We must satisfy our most basic needs (those at the bottom) before we are prompted to meet higher needs. Neural areas of the brain (hypothalamus) monitor blood chemistry (glucose levels) Basal metabolic rate - body"s resting rate of energy expenditure. Set point - biologically fixed tendency to maintain and optimum weight. Hunger can be influenced by memory remembering when we ate last thinking about when we should eat again taste preference depend on conditioning, culture, and situation. Based on an interaction between genes and environment.