Psilocybin alters visual contextual computations.
Nature communications November 21, 2025 Marco Aqil, Gilles De Hollander, Nina Vreugdenhil et al.
Psilocybin changes how the brain processes visual context, altering perception of the Ebbinghaus illusion and modifying cortical responses to visual stimuli. A computational model links these changes, suggesting that psychedelics generally act by disrupting contextual computations in the brain.