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Brief Communications

Shared Neural Markers of Decision Confidence and Error Detection

Annika Boldt and Nick Yeung
Journal of Neuroscience 25 February 2015, 35 (8) 3478-3484; https://doi.org/10.1523/JNEUROSCI.0797-14.2015
Annika Boldt
Department of Experimental Psychology, University of Oxford, Oxford OX1 3UD, United Kingdom
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Nick Yeung
Department of Experimental Psychology, University of Oxford, Oxford OX1 3UD, United Kingdom
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    Figure 1.

    Summary of the task procedure. Participants first pressed a key according to the field containing more dots, then rated their confidence in their decision on a 6-point scale. RSI, Response–stimulus interval.

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    Figure 2.

    A, Objective accuracy as a function of subjective confidence. B, Distribution of confidence levels as a function of objective accuracy. Error bars indicate within-subject confidence intervals.

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    Figure 3.

    A, Pe at electrode Pz, conditioned on level of confidence for errors and correct trials; response-locked ERP and topography for the difference between “certainly wrong” and “certainly correct” conditions from 250 to 350 ms; the topographic plot indicates voltages as colors from blue (−8 μV) to red (+8 μV). B, Stimulus-locked P3 and response-locked Pe at electrode Pz, conditioned on level of confidence for errors and correct trials with a prestimulus baseline for both potentials. C, Time course and spatial projection of the discriminating component identified by the classification analysis of errors versus correct responses, coded in arbitrary units.

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    Figure 4.

    A, Moving average confidence (window width, 51 ms) for quintiles of discriminating components; correct trials only (response locked); classifier trained on objective accuracy. B, Averaged over a time window ranging from 250 to 350 ms poststimulus. Error bars indicate within-subject confidence intervals.

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The Journal of Neuroscience: 35 (8)
Journal of Neuroscience
Vol. 35, Issue 8
25 Feb 2015
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Shared Neural Markers of Decision Confidence and Error Detection
Annika Boldt, Nick Yeung
Journal of Neuroscience 25 February 2015, 35 (8) 3478-3484; DOI: 10.1523/JNEUROSCI.0797-14.2015

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Shared Neural Markers of Decision Confidence and Error Detection
Annika Boldt, Nick Yeung
Journal of Neuroscience 25 February 2015, 35 (8) 3478-3484; DOI: 10.1523/JNEUROSCI.0797-14.2015
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Keywords

  • cognitive control
  • confidence
  • decision making
  • error monitoring
  • error positivity
  • metacognition

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