1. Muriel D. Lezak is an associate professor of neurology and psychiatry at the Oregon Health Sciences University and diplomate in clinical psychology and in clinical neuropsychology. She is also the past president of the International Neuropsychological Society.
2. Kevin P. O'Brien is a clinical neuropsychologist at the Barrow Neurological Institute and staff member of the Adult Day Hospital for Neurological Rehabilitation, an outpatient program for brain injured adults. Address: Muriel D. Lezak, Department of Neurology-L226, Oregon Health Sciences University, Portland, OR 97201.