Table 1.
Demographic patient data (means ± standard deviations).
Table 2.
Cognitive/language data of the patients (means ± standard deviations).
Table 3.
Results of the language assessment: pair-wise ANOVA comparisons between PPA subgroups.
Fig 1.
Regions of gray matter atrophy specific to each PPA variant as compared with other two variants.
Regions of gray matter atrophy are shown on the 3-dimensional rendering of the Montreal Neurological Institute standard brain. A) nfv-PPA, B) sv-PPA, C) lv-PPA.
Table 4.
Correlation between gray matter regions and performance with picture naming and single-word comprehension.
Fig 2.
Correlation of gray matter volumes with performance on naming for each PPA variant: lv-PPA (green), sv-PPA (red), nfv-PPA (no regions).
Results are superimposed on the 3-dimensional rendering of the Montreal Neurological Institute standard brain.
Fig 3.
Correlation of gray matter volumes with performance on naming (red) and single-word comprehension (blue) for the whole PPA group.
The overlap region representing the lexical-semantic hub is shown in pink. Results are superimposed on the 3-dimensional rendering of the Montreal Neurological Institute standard brain.