Generalized 3-4 Hz spike and slow wave complexes on EEG are seen in?

Juvenile myoclonic epilepsy REF: Clinical Electroencephalography by Misra Page 188 "In Juvenile myoclonic epilepsy the background activity of EEG is normal. Interictal EEG reveals generalised 4-6 Hz polyspikes and slow wave complexes" In Generalized tonic clonic seizure EEG shows a normal background with generalized epileptiform discharges such as spike or polyspike wave complexes at 2.5 to 4 Hz. On the EEG, typical absence seizures are associated with generalized, bilaterally synchronous, frontally predominant 3 Hz spike-and-wave discharges that begin suddenly from a normal background and end abruptly, without postictal slowing