Results of an ROI analysis for slice 3 located 7 mm anterior to the most anterior point of the corpus callosum. Strong bilateral activation of the MFG was evoked by targets (solid line) but not by novels (dashed line). Activation was markedly absent for the superior frontal gyri and the white matter control regions. Some activation evoked by targets was observed in right IFG and cingulate gyrus. WM, White matter.