Excessive high voltage fast activity in familial mental retardation, hyperkinesis and macrocephaly.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D004569:Electroencephalography; D006257:Head / Q000002:abnormalities*; D006801:Humans; D006948:Hyperkinesis / Q000235:genetics* / Q000503:physiopathology; D008607:Intellectual Disability / Q000235:genetics* / Q000503:physiopathology; D008297:Male; D012640:Seizures / Q000503:physiopathology; D012737:Sex Factors