Fig. 4.

Overlap of orientation activity with the default mode network (DMN). The DMN was identified using resting-state fMRI in each individual subject. The DMN is presented for a representative subject, overlaid with activity during the orientation task in space, time, and person (identified by contrasting activity between each orientation domain and the other two domains). (A) Midsagittal view, focus on the precuneus. (B) Lateral view, focus on the IPL. (C) Average percent, across subjects, of DMN voxels from all voxels active specifically for a single orientation domain. DMN voxels were found most prominently in the person domain (two-tailed t test, all P < 0.01) although some were found also in the time and space domains. P, person; S, space; T, time.