neurotransmitters

acetylcholine (ACh)

enables muscle action, learning and memory

dopamine

influences movement, learning, attention, and emotion

oversupply of dopamine

schizophrenia

under supply of dopamine

loss of motion control, Parkinson’s disease

serotonin

affects mood, hunger, sleep, and arousal

under supply of serotonin

depression

GABA

a major inhibitory neurotransmitter, slows and stops chemical reactions, calms

undersupply of GABA

leads to seizures, tremors, insomnia

Glutamate

a major excitatory neurotransmitter, involved with memory

over supply of glutamate

overstimulates the brain, migraines, seizures

Endorphins

natural opiate-like neurotransmitters linked to pain control and pleasure

agonists

molecules that can increase a neurotransmitters actions

antagonists

molecules that decrease a neurotransmitters actions by blocking