"Little seizures" should always be considered in children who have periods of 'spaciness' or 'blanking out'. Subclinical seizures may just cause a child to flutter eyelids, lose her train of thought, or repeat what he was saying. Sometimes brief or nighttime seizures cause attentional problems and restlessness that are misinterpreted as ADHD. Treatment of epilepsy results in improved attention and behavior.
Attentional problems and epilepsy in children
Incidence of Seizures in Children
Improved Behavior with Treatment of Epilepsy
ADHD and Epilepsy
Language Difficulties in Children with Benign Epilepsy