[The electroencephalogram in mental retardation].
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003398:Craniosynostoses / Q000503:physiopathology; D004314:Down Syndrome / Q000503:physiopathology; D004569:Electroencephalography; D006801:Humans; D008607:Intellectual Disability / Q000503:physiopathology*; D008831:Microcephaly / Q000503:physiopathology; D009456:Neurofibromatosis 1 / Q000503:physiopathology