Intracranial Stimulation Mapping In Epilepsy

Inclusion Criteria: * Male or female 18 years and older at screening. * Written informed consent is obtained from the participant to comply with the requirements of the study. * Stated willingness to comply with all study procedures and availability for the duration of the study * Currently undergoing clinically indicated intracranial EEG monitoring for planning of epilepsy surgery in the University of Minnesota/MINCEP program. Exclusion Criteria: * Pregnancy ruled out prior to approval for intracranial EG monitoring. * Persons who are rendered temporarily or permanently invulnerable by inability to understand the research due to study complexity, cognitive impairment, or by inability to make independent decisions owing to University of Minnesota or to Fairview health services.