1. Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
2. Department of Communication Sciences and Disorders, University of South Carolina Arnold School of Public Health, Columbia, SC 29208
3. Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD 21287
4. Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, MD 21287
5. Department of Cognitive Science, Krieger School of Arts and Sciences, Johns Hopkins University, Baltimore, MD 21218