Explanatory power by vagueness. Challenges to the strong prior hypothesis on hallucinations exemplified by the Charles-Bonnet-Syndrome.
Consciousness and cognition January 1, 2024 Franz Roman Schmid, Moritz F Kriegleder 1 citation
Predictive processing models, often proposed as a unified theory of perception, action, and cognition, fall short when applied to specific phenomena like hallucinations. Using Charles-Bonnet Syndrome as a case study, the authors argue that the current predictive processing account—specifically the strong prior hypothesis—fails to capture essential characteristics of stimulus-independent perception. This omission has critical phenomenological implications. To address the explanatory gap, the authors propose incorporating reality monitoring into the strong prior hypothesis, enabling it to account for nonveridical perceptual experiences beyond just veridical percepts.