Psychoactive drugs classified as _______ aid stimulation of receptor sites in the brain, while those classified as _______ block stimulation of receptor sites in the brain.

Question

Quizplus · Accepted Answer

Agonists are drugs that enhance or stimulate receptor activity in the brain, while antagonists are drugs that inhibit or block receptor activity. Therefore, choice A, which states that agonists aid stimulation and antagonists block stimulation, is the correct classification of psychoactive drugs. Choices C and D may be confusing as neuromodulators are a separate category of drugs that modulate the activity of neurotransmitters, but do not necessarily stimulate or block receptor sites.

Psychoactive Drugs Classified as _______ Aid Stimulation of Receptor Sites