Main effects of error signaling for incongruent NoGo trials.

Main effects are reported at a level of p<0.025 to account for the one-sidedness of the directed t-contrast, and family-wise (FWE) corrected at the voxel level to control for multiple comparisons. x, y and z are MNI coordinates of the peak voxel within a cluster. Z: z-value of standard normal distribution; BA = Brodmann area; c: activation cluster sizes, in voxels.