ELECTROPHYSIOLOGY OF ALZHEIMER'S DISEASE

Abstract

The EEG changes of normal aging are briefly outlined followed by an overview of the alterations caused by dementing processes with special reference to Alzheimer's disease The EEG manufestations of the various types of dementia are compared and contrasted. The relationships between the EEG slowing found in the dementias, the cognitive changes and cortical atrophy as demonstrated by computed tomography scanning are reviewed. The diagnostic relevance of average evoked potential recordings to dementia is examined with special emphasis on the brain stem auditory evoked responses, cortical visual evoked potential and the P300 wave.