Inclusion Criteria:  Individuals 15-25 years old Undergoing sEEG placement in the supratemporal plane for clinically necessary localization of epileptic foci or language mapping Fluent English speakers Cognition and speech-language skills within normal limits (as determined by evaluation prior to surgery) Normal or correct-to-normal visual acuity Normal hearing acuity in each ear (as determined by audiometric assessment) No history of autism or ADHD  Exclusion Criteria:  Individuals with intellectual disabilities Abnormal epileptiform activity in the supratemporal plane Lack of fluent English comprehension/production Severe language or auditory-specific cognitive dysfunction History of autism or ADHD