Random effects group analyses demonstrating regions of differential functional connectivity to the left pMTG (‘tool’) and right pSTS (‘social’) seed voxels. Each pair of sagittal brain images shows remarkably similar regions of differential functional connectivity in the System Identification data set (left row, P < 0.05 corrected) and Replication data set (right row, P < 0.005, cluster size > 476 mm³). Cool colors indicate higher resting-state BOLD correlations with the left pMTG (‘tool’) seed voxel than the right pSTS (‘social) seed voxel, and warm colors indicate higher correlations with the right pSTS (‘social’) seed voxel. The exact locations of the seed voxels are not shown in these slices, although the images do show regions of differential connectivity in the left pMTG and right pSTS that are adjacent to the seed voxels.