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Terms in this set (17)
A need or desire that energizes and directs behavior
It directs the behavior towards a goal.
A complex behavior that is rigidly patterned throughout a species and is unlearned
Such behaviors are common in other species.
the idea that a physiological need creates an aroused tension state (a drive) that motivates an organism to satisfy the need
Needs such as eating or drinking
A tendency to maintain a balanced or constant internal state; the regulation of any aspect of body chemistry, such as blood glucose, around a particular level.
"staying the same"
A positive or negative environmental stimulus that motivates behavior
That can lure or repel us.
Hierarchy of Needs
Maslows pyramid of human needs, beginning at the base with psychological needs that just first be satisfied before higher-level safety needs and then psychological needs become active.
Beyond these, said Maslow, lies the need to actualize ones full potential.
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.
Increases in the hormone insulin, diminish blood glucose
The point at which an individual's "weight thermostat" is supposedly set. When the body falls below this weight, an increase in hunger and a lowered metabolic rate may act to restore the lost weight.
Heredity influences set point.
Basal Metabolic Rate
The body's resting rate of energy expenditure
Some researchers doubt that our bodies have a preset tendency to maintain optimum weight.
An eating disorder in which a person, diets and becomes significantly underweight, yet still feeling fat, continues to starve.
3 out of 4 times affects females.
An eating disorder characterized by episodes of overeating, usually of high-calorie foods, followed by vomiting, laxative use, fasting, or excessive exercise.
Starts as a diet broken by gorging on forbidden foods.
Significant binge-eating episodes followed by distress, disgust, or guilt, but without the compensatory purging, fasting, or excessive exercise that marks bulimia nervosa.
2.8 percent of people some point in their lifetime meet the criteria for binge-eating disorder
Sexual Response Cycle
The four stages of sexual responding described by Masters and Johnson- excitement, plateau, orgasm, and resolution
Similar in men and women.
A resting period after orgasm, during which a man cannot achieve another orgasm.
Lasting a few minutes or a day or more
Sex hormones, such as estradiol, secreted in greater amounts by females than males and contributing to female sex characteristics. In nonhuman female mammals, estrogen levels peak during ovulation, promoting sexual receptivity.
Researchers can stimulate receptivity by injecting female animals with estrogen.
The most important of the male hormones. Both males and females have it, but the additional testosterone in males stimulates the growth of the male sex organs in the fetus and the development of the male sex characteristics during puberty.
Rats who lost their testes lose interest in receptive females.
An enduring sexual attraction toward either ones own sex or the other sex.
Cultures vary in their attitude toward homosexuality.
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