Inclusion Criteria:  Age≥18 years Patients with epilepsy Patients who are treated by levetiracetam (Levebel, Cobel darou) in recent month Complaint of behavioral problem Patient's consent for participation  Exclusion Criteria:  History of known psychiatric disease Pregnancy Incidence of psychotic side effects including hallucination, psychosis, suicidal idea or attempt Treatment with psychiatric medications Alcohol or drug abuse Mental retardation to the degree that intervenes comprehension and response to questionnaire