psych

dopamine

linked to movement, pleasure, want, & reward- too less=parkinson’s; too much=schizophrenia

serotonin

mood, sleep, appetite, low leeevls=depression

norpinephrine

alertness & arousal, linked to stress

glutamate

major excitatory; too much=migranes

GABA

inhibitory; low levels=anxiety

endorphins

natural painkillers;”runners high”

substance p

sends pain signalsto brain

acetylcholine

enables muscle movement and memory; low levels=alzhiemer’s

adrenaline

fight or flight, increase in energy

leptin signals

fullness; helps regulate body weight

ghrelin

stimulates hunger

oxytocin

promotes bonding

agonists

encourages excitatory fiiring

antagonists

discourages firing

stimulants

increased nueral activity

deprressants

decreased nueral activity

hallucinogens

distorrtions in cognition

opiiods

pain relief