UNIT 4: SOCIAL PSYCHOLOGY AND PERSONALITY

instincts

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Drive-Reduction Theory

motivation comes from the need to reduce physical discomfort

Homeostasis

body’s tendency to maintain a balance state

Ghrelin

hormone for hunger

Leptin

hormone for fullness

Hypothalamus

detect body changes and send signals to help maintain homeostasis

Hippocampus

form and store new memories

Amygdala

help recognize and react to negative emotions

Thalamus

send sensory information to correct parts of the brain

Pituitary Gland

controls endocrine glands by releasing hormones that signal them to release their own hormones.

Belongingness

human need to form close social relationships

Arousal Theory

theory that people are motivated to maintain an optimal level of arousal.

Yerkes-Dodson Law

law that performance is best at moderate arousal levels, not too high not too low.

Sensation-Seeking Theory

theory that some people seek stimulating experiences to maintain arousal

Sensation-Seeking Theory types

Thrill Seeking, Adventure Seeking, Disinhibition, Boredom Susceptibility

Thrill Seeking

Desire for exciting and risky activities

Adventure Seeking

Desire for new experiences.

Disinhibition

desire to seek excitement without restraint