| A | B |
|---|
| GABA (Gamma Amino Butyric Acid) | most common inhibitory neurotransmitter |
| Norepinephrine (NE or NORO) | plays a role in sleep and mood |
| Dopamine (DA) | voluntary motor activities; critical to motivation, memory, learning, and reward pathway |
| Acetylcholine (Ach) | controls skeletal muscles, which is under voluntary control; also helps control heart muscles; important for memory and attention |
| Serotonin (5HT) | plays a role in sleep, mood, eating pain perception |
| Glutamate (GLU) | most common excitatory neurotransmitter |
| Endorphins | decreases pain and makes someone feel pleasure |
| w | t |
