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September 10, 2025Nature CommunicationsOpen Access

Evidence accumulation in the pre-supplementary motor area and insula drives confidence and changes of mind

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Authors

DGDorian GoueytesFSFrançois StockartARAlexis Robin

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Overview

Electrophysiological analysis shows the brain's pre-supplementary motor area and insula are key in decision confidence and changes of mind.

Key Points

  • Evidence accumulation drives confidence judgments and decision change, indicated by intracranial high-gamma activity.
  • Neural correlates of confidence and changes of mind overlap in the pre-supplementary motor area and insula.
  • Post-decisional evidence accumulation model supports behavioral and electrophysiological findings in decision-making.
  • Study reveals the timing of evidence accumulation affects confidence formation before and after decisions.

Cite This Study

Goueytes et al. (2025) studied this question.

synapsesocial.com/papers/68c19f9c54b1d3bfb60db418https://doi.org/10.1038/s41467-025-61744-8
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