Dr. Walter R. Frontera is the Earle P. and Ida S. Charlton Professor and Chairman of Physical Medicine and Rehabilitation at Harvard Medical School. He is also the chief of Physical Medicine and Rehabilitation Service, SRHN, MGH, and BWH. Frontera practices out of the Spaulding Rehabilitation Hospital.

Dr. John Whyte is the Director of the Moss Rehabilitation Research Institute in Philadelphia. His research focuses on attention problems that occur in tramatic brain injury and patients recovering from coma or the "vegetative state."

Dr. Whyte has received funding for his research from the National Institutes of Health (NIH), including the National Institute of Neurologic Diseases and Stroke (NINDS) and the National Center for Medical Rehabilitation Research (NCMRR), as well as the Department of Education/National Institute on Disability and Rehabilitation Research (NIDRR), the Department of the Army and the James McDonnell Foundation. He has also received seed money grants from the Albert Einstein Society and the Moss Rehabilitation Research Institute Peer Review Committee.