1. Departments of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
2. Departments of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
3. Whiting School of Engineering, Johns Hopkins University, Baltimore, MD, USA
4. Departments of Radiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
5. Departments of Physical Medicine & Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, MD, USA
6. Department of Cognitive Science, Johns Hopkins University, Baltimore, MD, USA