Article Figures & Data
Figures
- 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.
- 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.
- 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.
- 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.
