Fig. 2
From: Language training for oral and written naming impairment in primary progressive aphasia: a review
Percentage of studies that applied each type of language treatment in nonfluent/agrammatic variant (nf/avPPA, red), semantic variant (svPPA, green), and logopenic/phonological variant (l/phvPPA, blue) of PPA. Cortical areas (anatomical regions of interest were created with WFU Pickatlas (https://www.nitrc.org/projects/wfu_pickatlas/)) that can be considered as most representative for each clinical entities (nf/avPPA: left inferior frontal gyrus/insula/premotor regions; svPPA: anterior temporal lobes (mainly on the left); l/phvPPA: superior/middle temporal gyri, inferior parietal lobule) are displayed on a standardized three-dimension T1 MRI template (for template and visualization MRIcron (https://www.nitrc.org/projects/mricron) was used