<prompt> Generated 3-4 Hz spike and slow wave complex is seen inGTCSAbscence seizureSimple paial seizureMyoclonic epilepsy  <response>: During an absence seizure, your brain;s electrical signals repeat themselves. A person who has absence seizures may also have altered levels of neurotransmitters. Hyperventilation or flashing lights may trigger an absence seizure in others. Doctors may never find a specific cause for some patients. Abscence seizure : Typical absence seizures have a bimodal distribution for age of onset; First peak at 5-8 years childhood Second peak near 12 years of age juvenile Childhood Absence Epilepsy CAE CAE is a childhood epilepsy syndrome occurring in 10-17 of all childhood onset epilepsy. The most common pediatric epilepsy syndrome. Females males Usually sta at 5-8 yr of age. No aura. Usually last for only a few seconds. Accompanied by eye lid flutter or upward rolling of eyes. Absence seizures can have simple automatisms like lip-smacking or picking at clothing. Head can minimally fall forward. No postictal period. Hyperventilation for 3-5 min can precipitate the seizures and the accompanying 3 Hz spike--and--slow-wave discharges. Reference: GHAI Essential pediatrics, 8th edition 