Fig. 3
From: Single-word comprehension deficits in the nonfluent variant of primary progressive aphasia
Reduced gray matter volume. Reduced gray matter volume based on a voxel-wise ANOVA with age and gender as covariates, depicted by a one-sided t contrast on an MNI template brain rendering and on coronal slices in a mixed variant (MV) PPA compared with healthy controls (HC), b nonfluent/agrammatic variant (NFV) pure PPA compared with HC, c MV compared with NFV pure, d NFV pure compared with MV, e MV compared with semantic variant (SV), f SV compared with MV, g SV compared with HC, h logopenic variant (LV) compared with HC, i MV compared with LV, and j LV compared with MV. The significance threshold was set at voxel-level uncorrected P < 0.001 with cluster-level family wise error (FWE)-corrected threshold P < 0.05. L left, R right