PSY 2012 Lecture Notes - Lecture 11: Bulimia Nervosa, Basal Metabolic Rate, Hypertension
Document Summary
Motivation- a need or desire that energizes and directs behaviors. Motivational approaches: evolutionary: role of instincts in motivation, instinct: unlearned complex behavior rigidly patterned throughout a species, drive-reduction theory: physiological need creates an aroused tension state that motivates an organism to satisfy the need. C. homeostasis: regulation of any aspect of body chemistry. Need (food, water) to drive (hunger, thirst) to drive-reducing behaviors (eating, drinking: optimum arousal theory: Low vs. high arousal & effects on performance. Sensation seekers: cognitive approach, intrinsic motivation: internal factors. B. extrinsic motivation: external factors: maslow"s hierarchy of needs, begins at the base with physiological needs that must first be satisfied, self-actualization: o(cid:374)e"s full pote(cid:374)tial as a hu(cid:373)a(cid:374) (cid:271)ei(cid:374)g. Stomach contractions accompany our feelings of hunger. Blood chemistry also plays a factor: glucose: form of sugar that circulates in the blood; when its low we feel hungry. Set point: point at (cid:449)hi(cid:272)h a perso(cid:374)"s (cid:862)(cid:449)eight ther(cid:373)ostat(cid:863) is supposedl(cid:455) set.
