as a number of functional psychiatric disorders, will not be considered. Thus the entire topic of mental retardation and early life brain damage will not be treated here, nor the many problems associated with minimal brain damage syn­ dromes in school age children. Modern psychiatric thinking has tended to blur the distinction between the so-called functional and organic disorders (d. Shagass, Gershon, & Friedhoff, 1977), but we would ad­ here to the view that the patient with structural brain damage contin­ ues to present relatively unique assessment and treatment problems. Furthermore, the emphasis of this book will be placed on individ­ uals with nonprogressive, chronic brain damage.