Language activation maps derived from the adaptive semantic matching paradigm.
(A) Group analysis in 14 neurologically normal participants. Whole brain
activations were thresholded at voxelwise p < 0.005
then corrected for multiple comparisons at p < 0.01
based on cluster extent. (B) Activation maps in 16 individuals with aphasia at
two time points each. The patients are arranged in groups according to clinical
impression, then in ascending order of overall QAB score within each group. See
Participants section, and for more detailed language data, see Figure 14 of
Wilson et al. (2018), which is laid
out the same way. Voxels with the highest 5% of t
statistics were plotted, subject to a minimum cluster volume of 2
cm3, in an ROI comprising known language regions or plausible
candidate regions for functional reorganization (Lang+
ROI); note that the cerebellum was not included (unlike panel A). Inset axial
slices show lesion reconstructions. T1 = first imaging session; T2
= second imaging session; Dice = Dice coefficient of similarity;
LI = lateralization index.