Dementia in old age.
D000367:Age Factors; D000368:Aged; D000375:Aging; D001921:Brain / Q000502:physiology; D001927:Brain Diseases / Q000503:physiopathology; D002908:Chronic Disease; D003704:Dementia / Q000473:pathology; D003863:Depression; D004522:Educational Status; D004569:Electroencephalography; D005191:Family Characteristics; D006801:Humans; D007360:Intelligence; D007361:Intelligence Tests; D007858:Learning; D008568:Memory; D001523:Mental Disorders; D010465:Perception; D010551:Personality; D012737:Sex Factors; D012959:Socioeconomic Factors