The neurotransmitter called acetylcholine plays a key role in sleep, moods, and emotional states, including the symptoms of major depressive disorder.

Question

Quizplus · Accepted Answer

Acetylcholine primarily functions in the peripheral nervous system where it activates muscles and in the central nervous system where it is involved in arousal, attention, memory, and motivation. While it does play roles in various brain functions, the neurotransmitters more directly associated with sleep, moods, and emotional states, including the symptoms of major depressive disorder, are serotonin, norepinephrine, and dopamine.

The Neurotransmitter Called Acetylcholine Plays a Key Role in Sleep