A predictive coding account of bistable perception - a model-based fMRI study.

ABSTRACT: In bistable vision, subjective perception wavers between two interpretations of a constant ambiguous stimulus. This dissociation between conscious perception and sensory stimulation has motivated various empirical studies on the neural correlates of bistable perception, but the neurocomputational mechanism behind endogenous perceptual transitions has remained elusive. Here, we recurred to a generic Bayesian framework of predictive coding and devised a model that casts endogenous perceptual transitions as a consequence of prediction errors emerging from residual evidence for the suppressed percept. Data simulations revealed close similarities between the model's predictions and key temporal characteristics of perceptual bistability, indicating that the model was able to reproduce bistable p

SUBMITTER: Weilnhammer V 

PROVIDER: S-EPMC5448813 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature