Pre- and post-decision signals of certainty in changing minds

Abstract

In a recent study, Goueytes and colleagues combined computational modeling with intracranial recordings to dissect the neural basis of confidence and changes of mind. They reveal a temporally organized, spatially distributed hierarchy of evidence accumulation, with pre-decisional signals in the pre-supplementary motor area (preSMA) and post-decisional signals in the insula. This reframes metacognition as a distributed and dynamic process.