Commonly studied neurotransmitters and their functions

"Ace-the-test" Acetylcholine (ACh)

Enables muscle action, learning, and memory

"Do-it" Dopamine

Influences movement, learning, attention, and emotion

"Singing" Serotonin

Affects mood, hunger, sleep, and arousal

"No-reply-fien" Norepinephrine

Helps control alertness and arousal

Stop-the-game GABA (gamma-aminobutyric acid)

A major inhibitory neurotransmitter

"Glowing" Glutamate

A major excitatory neurotransmitter; involved in memory

"Expressive" Endorphins

Neurotransmitters that influence the perception of pain or pleasure

Substance P (Pain)

Involved in pain perception and immune response

ACh deteriorate

Alzheimer's disease

Too much Dopamine

Schizophrenia

Too little Dopamine

Parkinson's disease

Too little Serotonin

Depression

Too little Norepinephrine

Depressed mood

Too little GABA

Seizures, tremors, & insomnia

Too much Glutamate

overstimulate the brain, migraines, seizures

Too much Endorphins

in Opioids causes natural decrease in endogenous Endorphins

Too much Substance P

Chronic Pain