Prediction Error Minimization and Hallucination——On the Solution of Hallucination by Predictive Processing Theory
Hallucinatory experience has the experience character similar to perceptual experience,but it doesn't present the external objects correctly like perceptual experience,so it poses a challenge to our understanding of per-ception.However,neither disjunctive dichotomy of perception and hallucination nor the common kind theory's common explanation of them are satisfactory.Predictive processing theory,which has emerged in recent years,can explain not only why and how hallucination occurs,but also why hallucinations with experiences similar to percep-tion are misrepresented.According to predictive processing theory,both perception and hallucination are the pre-dictions of the brain,but perception is the controlled prediction while hallucination is the uncontrolled prediction.The reason why perception correctly represents the object of perception is that it correctly minimizes the prediction error,and the reason why hallucination represents the nonexistent object of perception is that its prediction preci-sion is imprecise,so it selects the wrong hypothesis to minimize the prediction error.
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