Fig. S1.

Activations for each trial epoch. The activations during the instruction, stimulus/perceptual judgment, and confidence epochs are shown for the whole brain. Unthresholded maps are available on NeuroVault (Materials and Methods). The frontal cortex gradient is present in both hemispheres. In addition to the activations in the frontal cortex, a complex pattern of results is evident across the rest of the cortex. Part of this pattern can be explained by the amount of visual stimulation present on the screen during each epoch (e.g., the confidence period does not produce visual cortex activations because no stimuli were presented at that time). The activations in parietal cortex are interesting but are beyond the scope of the current investigation.