Philosophy Series: What can psychedelics tell us about perceptual processing?

Recent scientific findings indicate that psilocybin-induced visual distortions and impaired executive functioning originate in temporary disruptions of bottom-up and top-down attentional mechanisms. The speakers of this philosophy series, Prof. Dr. Dimitria Gatzia and Prof. Dr. Berit Brogaard, argue that the predictive processing account of psychedelic experiences lacks the resources to provide an adequate account of psychedelic experiences and propose an alternative theory of perceptual processing that can explain how the psilocybin-induced disruptions of attentional mechanisms may elicit psychedelic experiences.