Statistical parametric maps of decreased delta (1–4 Hz) band power in the time windows of 600–700 ms (A) and 800–900 ms (B) after the onset of the execution cue in the evaluation trials relative to the control trials (paired t-test).

<p>Statistical parametric maps are superimposed on surface-rendered high-resolution MRI. The extent of the decreased delta band power 600–700 ms after the onset of the execution cue in the brain region extending from Brodmann’s area (BA) 31 (A) and delta band power 800–900 ms after the onset of the execution cue in the brain region extending from BA 9 (B) were greater in evaluation trials than in control trials. The right (R) and left (L) sides are indicated. Random-effect analyses of 13 participants, <i>P</i><0.05, corrected for the entire search volumes (family-wise error rate).