Question

lsd affects ____________ neurotransmission.
a acetylcholine
b serotonin
c norepinephrine
d dopamine

Explanation:

LSD (lysergic acid diethylamide) is a hallucinogenic drug. It primarily affects serotonin neurotransmission. Serotonin is a neurotransmitter involved in regulating mood, perception, and other physiological processes. LSD binds to serotonin receptors (especially 5 - HT₂A receptors) and alters the normal functioning of serotonin in the brain, leading to the hallucinogenic effects. Acetylcholine is involved in muscle control and memory, norepinephrine in the "fight - or - flight" response, and dopamine in reward and movement. But LSD's main impact is on serotonin.

Answer:

B. serotonin