Figure 2.

(A) Fractional anisotropy in the posterior midbody of the corpus callosum was positively correlated with baseline IHI across all participants. (A) is overlayed with the classification scheme of Hofer and Frahm (2006). (B) Mean FA extracted from the significant region plotted against IHI. Non-musician controls are depicted in black, pianists in red, string players in blue, and group centroids are denoted with squares. The solid line depicts the linear regression through the plotted points. Group-wise correlations performed on the extracted FA values revealed that the positive correlation is also present within non-musicians (r = 0.44, p < 0.05), musicians (r = 0.51, p < 0.05), and string players (r = 0.96, p < 0.005).