An experimental drug is administered intravenously to six healthy volunteers. A finding in all six volunteers is decreased induction of sleep. A decrease in production of which of the following substances is most likely?

Question

Quizplus · Accepted Answer

Serotonin is a neurotransmitter that plays a key role in regulating mood and sleep. A decrease in serotonin production is likely to lead to decreased induction of sleep, as observed in the volunteers.

An Experimental Drug Is Administered Intravenously to Six Healthy Volunteers