Alzheimer´s Disease (AD), the most frequent cause of mental decline in the elderly represents one of the major health problems facing modern society. Despite considerable progress in the clinical diagnosis, epidemiology, structural basis, biochemistry, molecular genetics, and pharmacological aspects of AD, its etiology, molecular backgrounds, and treatment challenges are still poorly understood. This volume based on the 2nd International Symposium of EBEWE Research Initiative in October 1993 in Salzburg, Austria, is conceived as a review of our current knowledge of morphology, diagnostic clinical and imaging techniques, methodological approaches of cognitive assessment, trial designs, outcome variables and possibilities of therapy of AD and other neurodegenerative disorders. The book´s coverage is broad and it should be of interest for investigators, clinicians, and researchers involved in the problems of AD.