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Chapter 8
Key terms
25
Psychology
Undergraduate 1
11/04/2012

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Term
motivation
Definition
the factors the direct and energize the behavior of humans and other organisms
Term
instincts
Definition
inborn patterns of behavior that are biologically determined rather than learned
Term
drive-reduction approaches to motivation
Definition
Theories suggesting that a lack of a basic biological requirement such as water produces a drive to obtain that requirement. (example the thirst drive)
Term
Drive
Definition
Motivational tension or arousal that energizes behavior to fulfill a need
Term
homeostasis
Definition
the body's tendency to maintain a steady internal state
Term
arousal approach to motivation
Definition
the belief that we try to maintain certain levels of stimulation and activity, increasing or reducing them as necessary
Term
incentive approach to motivation
Definition
theories suggesting that motivation stems from the desire to obtain valued external goals or incentives
Term
cognitive approaches to motivation
Definition
theories suggesting that motivation is a product of peoples thoughts and expectations- their cognitions
Term
self- actualization
Definition
a state of self fulfillment in which people realize their highest potential, each in his or her own way
Term
Obesity
Definition
Body weight that is more than 20% above the average weight for a person of a particular height
Term
weight set point
Definition
the particular level of weight that the body strives to maintain
Term
metabolism
Definition
the rate at which food is converted to energy and then expended by the body
Term
Anorexia Nervosa
Definition
A severe eating disorder in which people may refuse to eat while denying that their behavior and appearance are unusual
Term
bulimia
Definition
a disorder in which a person binges on large quantities of food, followed by efforts to purge the food through vomiting or other means
Term
androgens
Definition
male sex hormones secreted by the testes
Term
genitals
Definition
the male and female sex organs
Term
estrogen
Definition
class of female sex hormones
Term
progesterone
Definition
a female sex hormone secreted by the ovaries
Term
ovulation
Definition
the point at which an egg is released from the ovaries
Term
need for achievement
Definition
a stable learned characteristic in which a person obtains satisfaction by striving for and attaining a level of excellence
Term
need for affiliation
Definition
an interest in establishing and maintaining relationships with other people
Term
need for power
Definition
a tendency to seek impact, control or influence over others, and to be seen as a powerful individual
Term
hypothalamus
Definition
Responsible for monitoring food intake
Term
Lateral hypothalamus damage
Definition
leads to refusal of food and starvation
Term
Ventromedial hypothalamus damage
Definition
causes extreme overeating
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