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• W3090863594 abstract "Abstract A growing body of evidence suggests that, during decision-making, BOLD signal in the VMPFC correlates both with motivational variables – such as incentives and expected values – and metacognitive variables – such as confidence judgments, which reflect the subjective probability of being correct. At the behavioral level, we recently demonstrated that the value of monetary stakes bias confidence judgments, with gain (respectively loss) prospects increasing (respectively decreasing) confidence judgments, even for similar levels of difficulty and performance. If and how this value-confidence interaction is also reflected in VMPFC signals remains unknown. Here, we used an incentivized perceptual decision-making task that dissociates key decision-making variables, thereby allowing to test several hypotheses about the role of the VMPFC in the incentive-confidence interaction. While initial analyses seemingly indicate that VMPFC combines incentives and confidence to form an expected value signal, we falsified this conclusion with a meticulous dissection of qualitative activation patterns. Rather, our results show that strong VMPFC confidence signals observed in trials with gain prospects are disrupted in trials with no – or negative (loss) monetary prospects. Deciphering how decision variables are represented and interact at finer scales (population codes, individual neurons) seems necessary to better understand biased (meta)cognition." @default.
• W3090863594 created "2020-10-08" @default.
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• W3090863594 date "2020-10-05" @default.
• W3090863594 modified "2023-10-18" @default.
• W3090863594 title "How motivational signals disrupt metacognitive signals in the human VMPFC" @default.
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• W3090863594 doi "https://doi.org/10.1101/2020.10.02.323550" @default.
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