Epilepsy is an umbrella term applied to a set of neurological disorders characterized by an enduring predisposition to seizures. During a seizure, the normal flow of electrical signals in the brain is disrupted by an uncontrolled burst of such electrical energy. The seizures vary in frequency and severity and for most sufferers (60%) the underlying causes are not easily identifiable. Most often, the underlying cause of a patient’s epilepsy is unknown (idiopathic epilepsy). In many cases, the etiology of epilepsy has a genetic component.