Which type of consciousness-altering drug facilitates the neurotransmission of GABA?
B is correct, Depressants produce calming effects and reduce stimulation by facilitating neurotransmission of GABA, an inhibitory neurotransmitter. Answer choice A is incorrect because stimulants produce euphoria by blocking the reuptake of dopamine, norepinephrine, and serotonin. Answer choice C is incorrect because hallucinogens produce hallucinations by either binding to specific receptors or enhancing neurotransmission. Answer choice D is incorrect because opioids produce pain relief by acting as agonists of opioid receptors.
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There are four major classes of consciousness-altering drugs that you need to know for the MCAT. Consciousness-altering drugs are named as such because they affect our neurochemistry in various ways, altering how we consciously experience reality. By affecting our cells and neurotransmitters, drugs are able to change our mood, emotions, thoughts, and actions. The four classes of drugs you need to know for the MCAT are stimulants, depressants, hallucinogens, and opioids.
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