Philosophy, Psychology and Neuroscience

Hearing voices and predictive processing: What are we expecting?

The past decade has seen a move away from self-monitoring models of psychosis to ones that emphasise alterations to predictive processing and Bayesian inference mechanisms. For hearing voices – or auditory verbal hallucinations (AVH) – this offers a range of promising ideas and new avenues of investigation, but may also leave other important questions unanswered. This talk will cover what evidence we have, so far, for a predictive processing account of AVH, including research with “non-clinical” voice-hearers (people who regularly have the experience without need for mental health support). It will then consider some of the explanatory gaps in such an account, and what else we might need to provide a nourishing and persuasive model of hallucinatory experience.