Neurotransmitters

Question 1

serotonin

Answer 1

Affects neurons involved in sleep, appetite, sensory perception, temperature regulation, pain suppression, and mood.

Question 2

dopamine

Answer 2

Affects neurons involved in voluntary movement, learning, memory, emotion, pleasure or reward, and, possibly, response to novelty.

Question 3

acetylcholine

Answer 3

Affects neurons involved in muscle action, cognitive functioning, memory, and emotion.

Question 4

norepinephrine

Answer 4

Affects neurons involved in increased heart rate and the slowing of intestinal activity during stress, and neurons involved in learning, memory, dreaming, waking from sleep, and emotion.

Question 5

GABA (gamma-aminobutyric acid)

Answer 5

Functions as the major inhibitory neurotransmitter in the brain.

Question 6

glutamate

Answer 6

Functions as the major excitatory neurotransmitter in the brain; it is released by about 90 percent of the brain’s neurons.