Four papers present major dimensions of minimal brain dysfunction. S.D. Clements lists medical and behavioral guidelines for the diagnostic evaluation of children with this condition, and discusses symptoms and their general course. In considering the impact of neurological disease on families, J.W. Conwell discusses the potentially devastating effect on the person and his family, the emotional impact of an invisible disability, the fear of epilepsy, appearance of normality and increasing difficulty of accepting the condition, the possible disruptions in behavior, and the difficulties in obtaining clear cut diagnoses. D.L. McCarthy describes parent programs in a center where parental involvement is encouraged and parent counseling is provided, and also describes the role of the counselor. J.D. Johnson delineates some educational principles for these children under the topics of diagnosis and evaluation, task analysis, relationship of learning functions, planning, and educational programs and goals. (DF)