LSD is a

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Multiple Choice

LSD is a

Explanation:
LSD is a hallucinogen. It mainly acts by altering serotonin signaling in the brain, especially at 5-HT2A receptors, which are key for processing perception, mood, and cognition. This receptor activity disrupts normal sensory processing, producing vivid visual distortions, altered colors and shapes, time distortion, and changes in self-awareness—typical features of psychedelic experiences. It is not primarily a stimulant, which would increase wakefulness and energy, nor a depressant, which would slow CNS activity, nor an opioid, which acts on pain pathways and produces analgesia.

LSD is a hallucinogen. It mainly acts by altering serotonin signaling in the brain, especially at 5-HT2A receptors, which are key for processing perception, mood, and cognition. This receptor activity disrupts normal sensory processing, producing vivid visual distortions, altered colors and shapes, time distortion, and changes in self-awareness—typical features of psychedelic experiences. It is not primarily a stimulant, which would increase wakefulness and energy, nor a depressant, which would slow CNS activity, nor an opioid, which acts on pain pathways and produces analgesia.

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