1
ACh
muscle and memory
TOO LITTLE Alzheimers
TOO MUCH
2
Dopamine
pleasure
TOO MUCH schizophrenia
TOO LITTLE parkinsons
3
Serotonin
mood and arousal
TOO LOW Depression
4
Norepinephrine
control alertness and arousal
5
GABA
Major inhibitory
TOO LOW seizures
6
Glutamate
major excitatory
TOO HIGH may be related to anxiety
7
Endorphins
perception of pain and pleasure
8
Substance P
Pain perception.
TOO HIGH chronic pain