TY - JOUR T1 - Disentangling the origins of confidence in speeded perceptual judgments through multimodal imaging. AU - Pereira,Michael, AU - Faivre,Nathan, AU - Iturrate,Iñaki, AU - Wirthlin,Marco, AU - Serafini,Luana, AU - Martin,Stéphanie, AU - Desvachez,Arnaud, AU - Blanke,Olaf, AU - Van De Ville,Dimitri, AU - Millán,José Del R, Y1 - 2020/04/01/ PY - 2020/4/3/pubmed PY - 2020/8/1/medline PY - 2020/4/3/entrez KW - EEG KW - confidence KW - error monitoring KW - fMRI KW - metacognition SP - 8382 EP - 8390 JF - Proceedings of the National Academy of Sciences of the United States of America JO - Proc Natl Acad Sci U S A VL - 117 IS - 15 N2 - The human capacity to compute the likelihood that a decision is correct-known as metacognition-has proven difficult to study in isolation as it usually cooccurs with decision making. Here, we isolated postdecisional from decisional contributions to metacognition by analyzing neural correlates of confidence with multimodal imaging. Healthy volunteers reported their confidence in the accuracy of decisions they made or decisions they observed. We found better metacognitive performance for committed vs. observed decisions, indicating that committing to a decision may improve confidence. Relying on concurrent electroencephalography and hemodynamic recordings, we found a common correlate of confidence following committed and observed decisions in the inferior frontal gyrus and a dissociation in the anterior prefrontal cortex and anterior insula. We discuss these results in light of decisional and postdecisional accounts of confidence and propose a computational model of confidence in which metacognitive performance naturally improves when evidence accumulation is constrained upon committing a decision. SN - 1091-6490 UR - https://www.unboundmedicine.com/medline/citation/32238562/Disentangling_the_origins_of_confidence_in_speeded_perceptual_judgments_through_multimodal_imaging_ DB - PRIME DP - Unbound Medicine ER -