Unit 7 Part 1 Flashcards
Motivation, Emotion, and Stress
Motivation
a need or desire that energizes & directs behavior
instinct
complex behavior that is rigidly patterned throughout a species and is unlearned
physiological needs
[a basic bodily requirement] create an aroused motivated state - a drive that pushes us to satisfy that need
drive
push to meet a physiological need
drive-reduction theory
idea that a physiological need creates an aroused state (drive) that motivates an organism to satisfy that need
homeostasis
a tendency to maintain a balanced or constant internal state regulation of body chemistry to maintain balance
incentive
positive or negative environmental stimulus that motivates behavior
Yerkes-Dodson Law
principle that performance increases with arousal only up to a point beyond which performance decreases; moderate arousal -> optimal performance
ghrelin
hormone secreted by empty stomach tells brain ““I’m hungry””
Orexin
hunger triggering hormone secreted by hypothalamus
insulin
hormone secreted by pancreas controls blood glucose
leptin
protein hormone from fat cells when abundant brain decreases hunger and increase metabolism
PYY
digestive tract hormone tells brain ““I’m not hungry””
basal metabolic rate
body’s resting rate of energy output
obesity
BMI of 30 or higher
estrogens
sex hormones like estradiol contribute to female sex characteristics and are secreted most by females peaks during ovulation
refractory period
a resting period occurring after orgasm during which a person cannot achieve another orgasm (longer for men)
affiliation
the need to belong