Persisting perceptual abnormalities in psychedelic users are associated with conditioned hallucinations and impaired sensory processing

Preprint, not peer reviewed. Greenwald MS, Waade PT, Kafadar E et al.. bioRxiv, 16 Aug 2026.

Tags: Preprint.

Weekly Science Digest, 3 Oct 2026 to 9 Oct 2026, finding 7: On the preprint servers

survey plus task data in 186 users links persisting perceptual abnormalities to higher doses, younger first use and reduced decision precision

How much weight it carries: Not peer reviewed. Early results that may not hold up. (Preprint)