PSYC 1000 Lecture Notes - Lecture 2: Kin Selection, Social Loafing, Cognitive Dissonance
25 Apr 2016
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The urge to move toward one"s goals; to accomplish tasks: need. Biological state of deficiency (cellular or bodily) that compel drives. Must have, or you die: drive. Perceived state of tension that occurs when our bodies are deficient in some need. Evolutionary model: the purpose of any living organism is to perpetuate itself, ability to survive, adapt, reproduce, major motives all involve basic survival and reproduction needs and drives. Drive reduction model: behavior is driven by need to balance physiological systems when depleted, when motivated behaviors are going to occur, homeostasis. Physiological equilibrium or balance around an optimal set point. Ideal fixed setting of a particular physiological system. Useful for motivative behaviour doesn"t always work well. Hierarchical model: maslow"s hierarchy of needs. Highest: psychological needs for growth and fulfill. When someone gets hungry you see a drop in glucose in the body. Lesion the area, animals don"t eat, or eat just enough to survive.
