LSD causes congenitally blind man to experience synesthesia-like hallucinations, according to a new case study published in the journal Consciousness and Cognition. Using psychedelic drugs amplified the man’s experience of sound, touch and smell.

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LSD causes congenitally blind man to experience synesthesia-like hallucinations, according to a new case study published in the journal Consciousness and Cognition. Using psychedelic drugs amplified the man’s experience of sound, touch and smell.