Forming global estimates of self-performance from local confidence

Marion Rouault (), Peter Dayan and Stephen M. Fleming
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Marion Rouault: University College London
Peter Dayan: University College London
Stephen M. Fleming: University College London

Nature Communications, 2019, vol. 10, issue 1, 1-11

Abstract: Abstract Metacognition, the ability to internally evaluate our own cognitive performance, is particularly useful since many real-life decisions lack immediate feedback. While most previous studies have focused on the construction of confidence at the level of single decisions, little is known about the formation of “global” self-performance estimates (SPEs) aggregated from multiple decisions. Here, we compare the formation of SPEs in the presence and absence of feedback, testing a hypothesis that local decision confidence supports the formation of SPEs when feedback is unavailable. We reveal that humans pervasively underestimate their performance in the absence of feedback, compared to a condition with full feedback, despite objective performance being unaffected. We find that fluctuations in confidence contribute to global SPEs over and above objective accuracy and reaction times. Our findings create a bridge between a computation of local confidence and global SPEs, and support a functional role for confidence in higher-order behavioral control.

Date: 2019
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DOI: 10.1038/s41467-019-09075-3

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