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Abstract
This study investigates how humans learn from implicit feedback (metacognitive confidence) compared to explicit feedback in perceptual decision-making. Using simultaneous EEG-fMRI, participants performed a motion direction discrimination task with intermixed explicit and no-feedback trials. EEG decoding isolated single-trial confidence, revealing separable neural signatures of implicit and explicit feedback along a dorsal-ventral striatal gradient. These signals integrated in the external globus pallidus (GPe), potentially broadcasting updates to improve cortical decision processing via the thalamus and insular cortex.
Publisher
Nature Communications
Published On
Jun 22, 2024
Authors
Tarryn Balsdon, M. Andrea Pisauro, Marios G. Philiastides
Tags
metacognitive confidence
implicit feedback
explicit feedback
EEG-fMRI
decision-making
neural signatures

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