Primary objectives: The purpose of this study is to identify single and composite biomarkers (from neuroimaging, electrophysiological, and non-imaging biological measures), clinical measures (from cognitive, psychometric, and behavioral test scores), and risk/protective factors (e.g., from medical history, socioeconomic status, coping, lifestyle) that can: 1. Predict antiseizure medication (ASM) treatment outcome, psychiatric, cognitive, or behavioral comorbidities, and quality of life in newly diagnosed epilepsy patients (Cohort II-III). 2. Predict a second epileptic seizure/epilepsy diagnosis and behavioral, cognitive, psychiatric dysfunction and quality of life in patients after a first epileptic seizure (Cohort I).