Modules 37-44 Flashcards
What is Motivation?
a need or desire that energizes and directs behavior
What is instinct?
a complex unlearned behavior that is rigidly patterned throughout a species
What is the drive reduction theory
the idea that a physioogical need creates an aroused tension state that motivates an organism to satisfy the need.
What is homeostasis
a tendency to maintain a balanced or constant internal state, the regulation of any aspect of body chemistry, such as blood glucose around particular level
What is an incentive?
a positive or negative enviormental stimulus that motivates behavior
What is Yerkes-Dodson law?
the principle that performance increases with arousal only up to a point, beyond which performance decreases.
hierarchy of need is?
Marslows pyramid of human needs. beginning at the base with physiogical needs that must first be satisfied before higher level saftey 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 weigth an increase in hunger and a lowered metabolic rate may act to restore the lost weigth.
basal metabolic rate
the bodys resting rate of energy expendature
sexual response cycle
the four stages of sexual responding described by Masters and johnson- excitement, plateau,orgasm, and resolution.
refractory period
a resting period after orgasm, during which a man cannot achieve another orgasm.
Sexual dysfunction
a problem that consitently impairs sexual arousal or functioning.
estrogens
sex hormones such as estradiol screted in greater amounts by females that by males and contributing to female sex characteristics. In nonhuman female mammals, estrogen levels peak during ovulation, promoting sexual recieval.
testosterone
the most important of the male sex hormones both males and femals have it but the additonal testoerone in males stimulates the growth of the male sex organs n the fetus and the development of the male sx charcteristics during puberty