FIG. 5.

(a) The anisotropy distribution of ventral gray matter (VGM, g) and ventrolateral white matter (VLWM, w) from six control mice (Con01–Con06) are shown with dorsal gray and white matter excluded. Two normally distributed RA values are clearly seen from VGM (0.27 ± 0.10) and VLWM (0.97 ± 0.19). All data are presented as mean ± standard deviation. A threshold of RA = mean + 2 × standard deviation (i.e., 0.47) of VGM was employed to successfully separate the ventrolateral white matter from the gray matter (b).