Fig. 1.

Four significant clusters of decreased gray matter volume were observed six months after the index course of ECT. Images are thresholded at p < 0.01 (FWE). There were no regions of significant volumetric increase. Cluster numbers correspond to peak voxel labels provided in Table 3. Numbers next to axial slices for Clusters 2 and 3 refer to Talairach x-coordinates. (FWE, Family-wise error).