Participants will be recruited from the long-term EEG monitoring floor and outpatient EEG laboratory. Controls will be recruited in response to advertisements. All participants will be given the BNA Auditory Go/NoGo task. Patient identity will be coded with a master record kept on a password protected computer in the laboratory. Deidentified data will be sent to ElMindA for scoring of the BNA test. Patient data from electronic medical records will be extracted along with patient MRI data processed.