8A- Motivation Flashcards
(99 cards)
a need or desire that energizes and directs behavior
motivation
a complex behavior that is rigidly patterned throughout a species and is unlearned
instinct
the idea that physiological need creates an aroused tension state that motivates an organism to satisfy the need
drive-reduction theory
a tendency to maintain a balance and or constant internal state
homeostasis
a positive or negative environmental stimulus that motivates behavior
incentive
pyramid of humans needs, beginning at the base with physiological needs that first must be satisfied before higher-level safety needs and then psychological needs become active
hierarchy of needs
needs that have meaning beyond oneself
self-transcendence needs
needs that help one reach their full potential
self-actualization needs
one of our most basic needs
hunger
studied contractions of the stomach, and found that contractions accompany feelings of hunger
Washburn study
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
glucose
increases in this diminish blood glucose
insulin
when active, makes us feel hungry by releasing orexin
lateral hypothalamus
a hunger-triggering hormone
orexin
when active, it depresses hunger; when removed, one becomes fat
ventromedial hypothalamus
a hunger-arousing hormone secreted by an empty stomach
ghrelin
a sister hormone to ghrelin, but the stomach secretes this that sends a fullness signal that suppresses hunger
obestatin
appetite-suppressant hormone secreted by the digestive tract
PYY
a protein that is secreted by fat cells and acts to diminish the rewarding pleasure of food
leptin
the point at which an individual’s “weight thermostat” is supposedly set
set point
the body’s resting rate of energy expenditure
basal metabolic rate
sweet and salty
genetic and universal taste preferences
dislike of things that are unfamiliar
neophobia
a person diets and becomes significantly underweight, yet, still feeling fat, continues to starve; usually adolescent females
anorexia nervosa