History of uncontrolled seizures, at the present time, at least during 6 months of the past 3 years, and preferably a continuous pattern of seizures during the few months prior to admission.

Seizure frequency, by history, must be sufficient to make video monitoring effective. Priority will be given to patients whose seizures occur once or more per day.

Patients of any age may be accepted.

Patients (and parents or guardians, if applicable) must express willingness to cooperate with the entire protocol, to be willing to undergo further diagnostic tests if needed, and to return for follow up evaluation at intervals as needed.