Normalized GM, WM, and total brain volumes*
| GM | WM | Total | |
|---|---|---|---|
| Controls | 782 ± 41 | 713 ± 65 | 1495 ± 81 |
| PD Patients | 773 ± 55 | 718 ± 49 | 1491 ± 89 |
| ART-PD | 767 ± 54 | 720 ± 36 | 1487 ± 79 |
| TDT-PD | 778 ± 62 | 722 ± 55 | 1500 ± 104 |
Note:—TDT indicates tremor-dominant type; ART, akinetic-rigid type; GM, gray matter; WM, white matter.
* Volume values (cubic centimeters) are reported as mean ± SD.