Figure 7.

Activation to AP–MuR in the absence of a task in a subset of the older group (ages 56–81). Participants passively listened to stimuli identical to those used in the word-monitoring task 12–14 months after their first scan. Activation is shown only in voxels active during word monitoring, with threshold lowered to voxel-level P < 0.01, cluster size >60 to maximize sensitivity to common effects. Clusters in LIFG BA 47/45, RIFG BA 47/45, and bilateral MTG were significant at P < 0.05 corrected, except RIFG (P < 0.05 uncorrected). No effects were seen in MFG or parietal lobe.