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Myers Module 26
Introduction to Motivation: hunger
Question | Answer |
---|---|
Motivation | a need or desire that energizes behavior and directs it toward a goal. |
Instinct | a complex behavior that has a fixed pattern among a species and is unlearned. |
Drive-reduction theory | the idea that a physiological need creates an aroused tension state (a drive) that motivates the organism to satisfy the need. |
Homeostasis | the maintenance of a steady internal state |
Incentives | positive or negative stimuli that allure or repel us. |
Hierarchy of needs | Maslow’s pyramid of human needs |
Glucose | the form of sugar that circulates in the blood and provides the major source of energy for body tissues. When it’s level is low, we feel hunger. |
Ghrelin | a hunger arousing hormone. |
Set point | The point at which an individual’s “weight thermostat” is supposedly set. When the body weight falls below this level, an increase in hunger and a lowered metabolic rate may act to restore the lost weight. |
Basal metabolic rate | the body’s resting rate of energy expenditure. |