AP Psych Unit 3 Endorphins

Serotonin

Affects mood, hunger, sleep, and arousal Undersupply = depression Antidepressants raise levels of this

Antagonist

Binds to a receptor site and inhibits/blocks a response

Agonist

Binds to a receptor site and stimulates a response

Norepinephrine

Controls alertness and arousal Undersupply = depression

Acetylcholine (ACh)

Enables muscle action, learning, and memory Alzheimer's- ACh producing neurons deteriorate

Glutamate

Major excitatory neurotransmitter; involved in memory Oversupply = stimulate brain - produces migraines or seizures

GABA

Major inhibitory neurotransmitter Undersupply = tremors, seizures and insomnia

Dopamine

Movement, learning, attention, emotion Oversupply = schizophrenia Undersupply = Tremors and decreased mobility in Parkinson's disease

Endorphins

Natural opiate-like neurotransmitters linked to pain control and to pleasure