[Electroencephalography during sleep in elderly demented subjects].
D000328:Adult; D000368:Aged; D003704:Dementia / Q000503:physiopathology*; D004569:Electroencephalography; D004576:Electromyography; D005133:Eye Movements; D006801:Humans; D001523:Mental Disorders / Q000503:physiopathology*; D008875:Middle Aged; D012890:Sleep