Part 1 Cognitive disorders of childhood: developmental disabilities - mental deficiency, autism and dysphasia, Isabelle Rapin; developmental disabilities in school-aged children, Susan K. Klein and Mary Anne Muriello. Part 2 Cognitive disorders of middle years: cognitivie function after closed head injury - sequelae and outcome, Felicia C. Goldstein and Harvey S. Levin; neurophysiological aspects of Huntington's disease, Elsdon Storey and M. Flint Beal; cognitive disorders associated with psychiatric illnesses, John S. Kennedy and John T. Kenny; consequences of drug and ethanol use on cognitive function, David N. Stephens et al; the cognitive effects of electroconvulsive therapy, Harold A. Sackeim. Part 3 Cognitive disorders of late years: Alzheimer's disease, Douglas Galasko and Leon J. Thal; cognitive dysfunction in Parkinson's disease and related disorders, Christopher F. O'Brien and Ira Shoulson; vascular dementias, G. Webster Ross and Jeffrey L. Cummings; age-associated memory impairment, Glenn J. Larrabee et al. Part 4 Pharmacological treatment - future possibilities and their evaluation: pharmacological prospectives, Walter H. Moos et al; trophic factors and invasive prodecures, Franz F. Hefti and Lon S. Schneider; clinical trials issues - the example of dementia, Paul D. Leber.