Fig. 6.

Support vector machine classification results for the discrimination between logopenic variant PPA and nonfluent/agrammatic variant PPA. Top: Regions most relevant for support vector machine classification as logopenic variant PPA (lvPPA) in yellow, nonfluent/agrammatic variant PPA (nfvPPA) in light green. Note that the scale of the distance weights has no applicable units. VBM results are not shown for the group comparisons, because no significant results were obtained. Middle: Sensitivity, specificity, and accuracy for the ROI approach and the whole brain approach in SVM classification. Bottom Regions of interest (ROIs) based on independent meta-analyses.