1. Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, MD, United States
2. Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
3. Department of Speech & Hearing Sciences, University of Washington, Seattle, WA, United States
4. Department of Linguistics and Cognitive Science, University of Delaware, Newark, DE, United States
5. Department of Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
6. Department of Cognitive Science, Johns Hopkins University, Baltimore, WA, United States