EEG Changes in Patients with Alzheimer’s Disease

The prevalence of cognitive impairment is steadily increasing throughout the world. The World Health Organization has reported that by 2030 there will be up to 82 million people with dementia, this increasing to 152 million by 2050. The most common cause is Alzheimer’s disease (AD). Given that the pathophysiological process in AD begins several years before the onset of clinical symptoms, identification of AD at an early stage would probably improve the clinical prognosis. This report presents data on EEG changes detected in patients with AD and also discusses the possibility of using electroencephalography as a screening method for examining patients with cognitive deficits.