The electrical activity of the brain is printed on paper in the form of brain waves. By nerve cells in the brain and in alertness, as well as produced in the sleep state. At normal electrical activity of epilepsy, including many condition deteriorates. EEG brain waves that make the evaluation of normal or abnormal electrical activity to obtain information about the location and shape of the disorder. Mosly in the diagnose of various epilepsy forms, Also in the investigation of the causes of headaches, and brain function is evaluated by the EEG.