Activation maps show greater activity during Proximity Judgment compared to the control task in the posterior medial frontal cortex (pMFC) that extends bilaterally into the superior frontal sulci, right anterior horizontal intraparietal sulcus (HIPS), right posterior HIPS, a large bilateral activation in the precuneus that extends continuously into the left posterior HIPS and right cuneus, right parieto-occipital sulcus, left precentral sulcus, right and left middle frontal gyrus, right tail of caudate and left head of caudate, and right and left anterior insula.