Figure 3. The effect of age×education on white matter integrity. The fibers in red exhibited significant age×education interaction effects (p< 0.05), including the FA and MD of the forceps major, and the MD of the SLF.temporal part. The plots were drawn to illustrate how the white matter changes within the actual range of age. FA=fractional anisotropy; MD=mean diffusivity; SLF=superior longitudinal fasciculus.