[Correlations between cerebral bioelectric activity and intellectual efficiency in a group of elderly persons].
D000368:Aged; D000369:Aged, 80 and over; D004569:Electroencephalography; D055724:Electrophysiological Phenomena; D005853:Geriatrics / Q000502:physiology*; D006801:Humans; D008606:Mental Processes
ELECTROENCEPHALOGRAPHY/in old age; GERIATRICS/physiology; MENTAL PROCESSES/in old age