ABSTRACT
This chapter explores the three different CNS disorders that affect the organ of thought and consciousness that are: epilepsy, hyperactivity; and Alzheimer's disease. The term epilepsy is broader and refers to 'the many types of recurrent seizures produced by paroxysmal excessive neuronal discharges in different parts of the brain that can be due to a variety of cerebral and general bodily disorders'. Inattention and impulsivity, in the absence of actual behavioral hyperactivity, constitutes attention deficit disorder without hyperactivity (ADDNH). Parallels between Parkinson's and Alzheimer's diseases offer a basis for hope in developing a pharmacological treatment that might arrest or even reverse the progression of Alzheimer's. If a given brain with structural damage could be made to operate with greater biochemical efficiency, this might compensate for the neural damage and even result in a net improvement with respect to a normal brain of the same age.
