Clinical Research Directory

Inclusion Criteria: * Adults (age 22 and above) who had a routine EEG in an outpatient setting, following a suspected seizure. * A diagnosis of epilepsy or alternate condition has been reached. A period of at least 3 years has passed since ultimate diagnosis, which itself has remained stable. * EEGs performed to ABRET \& IFCN standards using a minimum of 19 electrodes and additional technical requirements. Exclusion Criteria: * Subject was not suspected of having had a seizure or epilepsy. * Subject has a dual diagnosis of epilepsy AND non-epileptic seizures. * Subject's final diagnosis unknown, unstable, or less than three years passed since an unchanged diagnosis was made. * Incomplete or unreliable metadata, such as the age, sex, and treatment status at the time of the EEG recording. * Sleep deprived EEG recordings in the outpatient setting. * Encephalopathic subjects. * Poor quality EEGs (multiple artefacts) that do not fulfil technical criteria for analysis. * Known structural abnormalities or skull breaches, including historical cases, or with people with metal or plastic implants in their brain or skull.