Which of the following is a feature of absence seizure
Absence Seizures:
Age: school going children
During seizure, blank staring episodes seen 
No post ictal confusion
EEG: 3 / sec spike and wave pattern
Drug of choice: Sodium Valproate.
Associated with post - ictal confusion
Seizure precipitated by hyperventilation
EEG shows 4-5 / sec spike and wave pattern
During seizure, automatism present