FIGURE 1.

Mean diffusivity in deep and superficial white matter over the whole brain in MSA patients, PD patients and controls. **p < .01. Error bars are SEM. MSA, multiple system atrophy; PD, Parkinson's disease

Mean diffusivity in deep and superficial white matter over the whole brain in MSA patients, PD patients and controls. **p < .01. Error bars are SEM. MSA, multiple system atrophy; PD, Parkinson's disease