There are several different types of seizures, with therapeutic options significantly differing. These are some of the seizure patterns that one sees on EEG: 1)Absence seizures have the characteristic 3hz spike and wave discharges. 2)Juvenile myoclonic epilepsy has a 4Hz spike and wave discharge pattern 3)Infantile spasms show the ominous pattern of hypsarrhythmia 4) Lennox Gastaut shows 1-2 Hz spike and wave discharges 5) Focal spikes and spike wave complexes