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Sensory uncertainty decoded from visual cortex predicts behavior.

ABSTRACT: Bayesian theories of neural coding propose that sensory uncertainty is represented by a probability distribution encoded in neural population activity, but direct neural evidence supporting this hypothesis is currently lacking. Using fMRI in combination with a generative model-based analysis, we found that probability distributions reflecting sensory uncertainty could reliably be estimated from human visual cortex and, moreover, that observers appeared to use knowledge of this uncertainty in their perceptual decisions.

SUBMITTER: van Bergen RS

PROVIDER: S-EPMC4670781 | biostudies-literature | 2015 Dec

REPOSITORIES: biostudies-literature

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Sensory uncertainty decoded from visual cortex predicts behavior.

van Bergen Ruben S RS Ma Wei Ji WJ Pratte Michael S MS Jehee Janneke F M JF

Nature neuroscience 20151026 12

Bayesian theories of neural coding propose that sensory uncertainty is represented by a probability distribution encoded in neural population activity, but direct neural evidence supporting this hypothesis is currently lacking. Using fMRI in combination with a generative model-based analysis, we found that probability distributions reflecting sensory uncertainty could reliably be estimated from human visual cortex and, moreover, that observers appeared to use knowledge of this uncertainty in the ...[more]

PMID: 26502262

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