click below
click below
Normal Size Small Size show me how
Vocab for Chapter 12
Myers 7th Edition - Chapter 12 Vocabulary
TERM | DESCRIPTION |
---|---|
Motivation | A need or desire that energizes and directs behavior. |
Instinct | A complex behavior that is rigidly patterned throughout a species and is unlearned. |
Drive-reduction theory | The idea that a physiological need creates an aroused tension state (a drive) that motivates an organism to sastify the need. |
Homeostasis | A tendency to maintain a balanced or constant internal state; the regulation of any aspect of the body chemistry, such as blood glucose, around a particular level. |
Incentive | A positive or negative enviromental stimulus that motivates behavior. |
Hierarchy of needs | Maslow's pyramid of human needs, beginning at the base with physiological needs that must first be satisfied before higher-level safety needs and then psychological needs become active. |
Glucose | The form of sugar that circulates in the blood and provides the major source of energy for body tissues. When its level is low, we feel hunger. |
Set point | The point at which an individuals "weight thermostat" is supposedly set. When the body falls below this weight, an increase in hunger and lowered metabolic rate may act to restore the lost weight. |
Basal metabolic rate | The body's resting rate of energy expenditure. |
Anorexia nervosa | An eating disorder in which a normal-weight person (usually an adolescent female) diets and becomes significantly (15 percent or more) underweight and yet, still feeling fat, continues to starve. |
Bulimia nervosa | An eating disorder characterized by episodes of overeating, usaully of high calorie food, followed by vomiting, laxative use, fasting, or excessive exercise. |
Sexual response cycle | The four stages of sexual responding descirbed by Masters and Johnson - excitement, plateau, orgasm, and resolution. |
Refractory period | A resting period after orgasm, during which a man cannot achieve another orgasm. |
Estrogen | A sex hormone, secreted in greater amounts by females than by males. In nonhuman female mammals, estrogen levels peak during ovulation, promoting sexual receptivity. |
Sexual orientation | An enduring sexual attraction towards members of either one's own sex (homosexual orientation) or the others sex (heterosexual orientation). |
Achievement motivation | A desire for significant accomplishment: for mastery of things, people, or ideas; for attaining a high standard. |
Binge-eating disorder | significant binge-eating episodes, followed by distress, disgust, or guilt, but without the compensatory purging, fasting, or excessive exercise that marks bulimia nervosa. |
Testosterone |