ShermanJNeuro final proof.pdf (1.4 MB)
Predictions shape confidence in the right inferior frontal gyrus
journal contribution
posted on 2023-06-09, 03:10 authored by Maxine ShermanMaxine Sherman, Anil SethAnil Seth, Ryota KanaiIt is clear that prior expectations shape perceptual decision-making, yet their contribution to the construction of subjective decision confidence remains largely unexplored. We recorded fMRI data while participants made perceptual decisions and confidence judgements, controlling for potential confounds of attention. We recorded fMRI data while participants made perceptual decisions accompanied by confidence judgements, controlling for potential confounds of attention. Results show that subjective confidence increases as perceptual prior expectations increasingly support the decision, and that this relationship is associated with BOLD activity in right inferior frontal gyrus (rIFG). Specifically, rIFG is sensitive to the discrepancy between expectation and decision (mismatch), and, crucially, higher mismatch responses are associated with lower decision confidence. Connectivity analyses revealed the source of the expectancy information to be bilateral orbitofrontal cortex (OFC) and the source of sensory signals to be intracalcarine sulcus. Altogether, our results indicate that predictive information is integrated into subjective confidence in rIFG, and reveal an occipital-frontal network that constructs confidence from top-down and bottom-up signals. This interpretation was further supported by exploratory findings that the white matter density of intracalcarine sulcus and OFC negatively predicted their respective contributions to the construction of confidence. Our findings advance our understanding of the neural basis of subjective perceptual processes by revealing an occipito-frontal functional network that integrates prior beliefs into the construction of confidence.
History
Publication status
- Published
File Version
- Accepted version
Journal
Journal of NeuroscienceISSN
0270-6474Publisher
Society for NeuroscienceExternal DOI
Issue
40Volume
36Page range
10323-10336Department affiliated with
- Informatics Publications
Research groups affiliated with
- Sackler Centre for Consciousness Science Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2016-09-28First Open Access (FOA) Date
2017-04-06First Compliant Deposit (FCD) Date
2016-10-06Usage metrics
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