 The American Board of Electrodiagnostic Medicine provides certification in EDX medicines.The American Board of Clinical Neurophysiology certifies in electroencephalography (EEG), Evoked Potentials (EP), Polysomnography (PSG), Epilepsy Monitoring, and Neurologic Intraoperative Monitoring (NIOM).In the US physicians typically specialize in EEG or EDX medicine but not both.