Inclusion Criteria:  Must be able to understand and speak English. Able to provide informed consent. Diagnosed with epilepsy. Scheduled to undergo long-term intra-cranial video monitoring for seizure onset localization. Must be implanted with intracranial depth electrodes to the left or right amygdala, hippocampus, and parahippocampal/perirhinal cortices.  Exclusion Criteria:  Unable to understand and speak English. Unable to provide informed consent. Not diagnosed with epilepsy.