Fig. 3

White matter brain regions with Between-group significant differences in FA, AD, RD values. White matter regions (red-yellow color) showed decreased FA and AD, and increased RD values in SMA group compared to the HC group (p < 0.05, TFCE and FWE correction). The white matter regions (green color) represented the white matter skeletons. FA, fractional anisotropy; AD, axial diffusivity; RD, radial diffusivity; SMA, spinal muscular atrophy; HC, healthy controls; L, left; R, right