Fig. 1

Group comparisons of cortical thickness and cortical mean diffusivity between patients with FTLD and cognitively unimpaired. Statistically significant results in cortical thickness (top) and cortical mean diffusivity (bottom) between FTLD subtypes (bvFTD, nfvPPA, and svPPA) and cognitively unimpaired individuals. Light blue–blue patches indicate thinner cortex, whereas orange–red regions indicate increased cortical mean diffusivity. Only the clusters that survived familywise error correction P < 0.05 are shown. bvFTD, behavioral variant of frontotemporal dementia; FTLD, frontotemporal lobar degeneration; nfvPPA, nonfluent variant primary progressive aphasia; svPPA, semantic variant primary progressive aphasia