Fig. 4.

Whole-brain correlation mapping between language domains and fixel-wise fiber density (FD) in post-stroke aphasia. Streamlines are cropped from the template tractogram to show significant fixels at family-wise error-corrected P < 0.05. A, Positive correlations between comprehension domain and FD. B, Positive correlations between naming domain and FD. Left panels: colors are encoded by fixel direction (green: anterior-posterior, blue: superior-inferior, red: left–right); right panels: streamline points are colored by t values of correlation analyses. sCC = splenium of the corpus callosum; Tap = tapetum of the corpus callosum. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)