For a period of some fifteen years following completion of my internship training in clinical psychology (1950-1951) at the Washington University School of Medicine and my concurrent successful navigation through that school's neuroanatomy course, clinical work in neuropsychology for me and the psychologists of my generation consisted almost exclusively of trying to help our physician colleagues differentiate patients with neurologic from those with psychiatric disorders. In time, experience led all of us from the several disciplines involved in this enterprise to the conclusion that the...