Diffusion parameters were calculated for 10 major white matter tracts: A) dark blue: genu of corpus callosum, light blue: body of corpus callosum, light green: splenium of corpus callosum, magenta: left inferior fronto-occipital fasciculus (IFO), light purple: left inferior longitudinal fasciculus (ILF); B) red: left cingulum bundle, orange: fornix; C) dark green: left pyramidal fibers, yellow: left superior longitudinal fasciculus including the arcuate fasciculus (SFL), grey: left uncincate fasciculus (UF). Tracts are shown on a T1-weighted image from a female 3.68 years of age.