Bar graphs show differences between Deep White Matter Tracts FA, AD, RD, and Iron. The error bars represent the Standard Error Mean (SEM). Legend. FA = Fractional Anisotropy; AD = Axial Diffusivity; RD = Radial Diffusivity. (AD/RD Mean units: 10−3 mm2/s, R2* (10−3 mm1/s) Tracts are from a representative single subject. Legend. Hemi DWM = total Deep White Matter for each hemisphere, it is the result of the individual white matter tracts combined, AF = Arcuate Fasciculus, SLF = Superior Longitudinal Fasciculus, Cing = Cingulate, ILF = Inferior Longitudinal Fasciculus, IFO = Inferior Frontal Occipital fasciculus, ATR = Anterior Thalamic Radiation, UF = Uncinate Fasciculus.