title: Direct observation studies of hyperactive behaviors.
mesh_terms: D001288:Attention; D001289:Attention Deficit Disorder with Hyperactivity / Q000150:complications / Q000175:diagnosis / Q000523:psychology*; D001925:Brain Damage, Chronic / Q000150:complications / Q000523:psychology; D002648:Child; D002652:Child Behavior; D004777:Environment; D004827:Epilepsy / Q000150:complications / Q000523:psychology; D006801:Humans; D008607:Intellectual Disability / Q000150:complications / Q000523:psychology