Fig. 1: Motor symptoms and gray matter volume change over time.

Greater gray matter volume loss over 4 years was associated with AR but not tremor symptom severity at baseline. SPL superior parietal lobule, PCL paracentral lobule.

Greater gray matter volume loss over 4 years was associated with AR but not tremor symptom severity at baseline. SPL superior parietal lobule, PCL paracentral lobule.