Cortical Depth Dependence of the Diffusion Anisotropy in the Human Cortical Gray Matter In Vivo
Figure 5
FA (mean ± standard deviation) as a function of the cortical depth. The solid lines were computed with cubic spline interpolation. The dashed lines denote the pial surface and the GM/WM interface at a cortical depth of 0% and 100%. The first four columns show the cortical profiles in the representative ROIs shown in Figs. 1A,F,K, whereas the last column shows the mean cortical profiles averaged over 20 ROIs. The first two rows show results from identical experiments performed on the same subject on two different days. The arrows show a local maximum in the middle cortical lamina and a local minimum in the deep cortical lamina.