Figure 2.

Default mode network maps obtained from the spatial ICA analysis (A), low-frequency fluctuation GLM analysis (B), and their overlaps (C). The four green spheres in panel A denote the four ROIs used in the DCM analysis. The ICA map was z transformed, and thresholded at z > 1.96. The LFF map was thresholded at p < 0.001 and cluster extend k > 11 (corresponding to cluster level FDR correction at p < 0.05). In panel C, the ICA map and LFF map were displayed in red and blue, respectively, and the overlap was displayed in violate.