Months after last taking a drug, a former drug abuser still produces very little serotonin. The person is depressed and anxious and has great difficulty remembering new material. MOST likely, the abused substance was:
A) Ecstasy.
B) cannabis.
C) LSD.
D) benzodiazepine.

Question

Quizplus · Accepted Answer

Ecstasy (MDMA) is known to have long-term effects on the brain's ability to produce serotonin, a neurotransmitter closely linked to mood regulation, memory, and learning. The symptoms described are consistent with the aftermath of ecstasy abuse.

Months After Last Taking a Drug, a Former Drug Abuser