Figure 2
Accuracy (top), performance confidence (middle) and predicted confidence (bottom) in Experiment 1 (left) and Experiment 2 (right). Performance differs between easy and medium, easy and difficult, and medium and difficult trials, but not reliably between the two medium conditions (low low, high high). Confidence (both related to performance on the last trial and predictions concerning the next stimulus) differs between medium conditions, with the low low condition leading to higher confidence estimates than the high high condition. Single dots show single-subject data, bars display mean of the distribution (solid line), 95% confidence interval (dark grey shaded area), and 1 standard deviation (light grey shaded area). The data presented for Experiment 1 comprises all six experimental blocks, whereas the data presented for Experiment 2 comprises only the first four of six experimental blocks (those prior to the switch in the cue-condition contingencies).
