Persisting perceptual abnormalities in psychedelic users are associated with conditioned hallucinations and impaired sensory processing
bioRxiv (Cold Spring Harbor Laboratory) August 16, 2026 Maximillian Greenwald, Peter Thestrup Waade, Eren Kafadar et al. preprint
Abstract Serotonergic psychedelics (SP) are increasingly used in clinical research and naturalistic settings, but their psychotic-like side effects, including persisting perceptual abnormalities (PPAs), are poorly understood. Psychosis-associated hallucinations are associated with susceptibility to conditioned hallucinations and computationally-estimated overweighting of perceptual...