Daniel N. Allen, Ph.D., is professor in the Department of Psychology at University of Nevada Las Vegas. He has published more than 125 scientific papers addressing various aspects of clinical neuropsychology and psychopathology. He has received national recognition for his work in the area of clinical neuropsychology, as evidenced by a number of prestigious awards, including the Nelson Butters Award and the Early Career Award from the National Academy of Neuropsychology. He has also received the Barrick Distinguished Scholar Award and the William Morris Award for Excellence in Scholarship from the University of Nevada Las Vegas.  Gerald Goldstein, Ph.D., is senior research career scientist at the VA Pittsburgh Healthcare System. He has received numerous honors and awards for his contributions to clinical neuropsychology, and has served the field in a variety of highly visible leadership positions, including President of the National Academy of Neuropsychology, President of the Clinical Neuropsychology Division (40) of the American Psychological Association, and President of the International Neuropsychological Society. Dr. Goldstein has authored more than 300 scientific papers.