Clinical Research Directory

Inclusion Criteria: * Eligible subjects will include neurosurgery patients (age 18 and above) who have implantation of intracranial electrodes and undergo long term (about 2 weeks) EEG monitoring in order to decide candidacy for surgical resection of seizure foci. They must have the cognitive capacity to understand the risks and benefits fo the study and provide consent. Exclusion Criteria: Those who are known to have neurological or psychiatric disorder other than primary disease for which patients have surgery will be excluded.