title: Organic factors in hyperkinesis: a critical evaluation.
abstract: The role of organic factors in childhood hyperkinesis is evaluated, with a focus on electroencephalographic, neurological, biochemical, pregnancy and birth, and genetic research. Evidence that the majority of hyperkinetic children suffer from organic dysfunction is found to be minimal. This conclusion is discussed, and guidelines for future research are offered.
mesh_terms: D001289:Attention Deficit Disorder with Hyperactivity / Q000150:complications*; D001792:Blood Platelets / Q000378:metabolism; D001921:Brain / Q000378:metabolism / Q000503:physiopathology; D002395:Catecholamines / Q000378:metabolism; D004200:Diseases in Twins; D004569:Electroencephalography; D005260:Female; D006801:Humans; D006948:Hyperkinesis / Q000209:etiology* / Q000235:genetics / Q000378:metabolism / Q000503:physiopathology; D007855:Lead Poisoning / Q000150:complications; D008297:Male; D009048:Motor Skills; D007744:Obstetric Labor Complications; D011247:Pregnancy; D011248:Pregnancy Complications; D012021:Reflex, Abnormal / Q000209:etiology; D012701:Serotonin / Q000097:blood
chemical_list: D002395:Catecholamines; D012701:Serotonin