What are Epileptic Seizures?
Epileptic seizures are the principal clinical manifestations of the epilepsies. A simplistic view of brain disturbances is that they consist of either neuronal underactivity, giving rise to negative signs and symptoms such as paralysis and blindness, or overactivity, giving rise to positive signs and symptoms, the most common of which is epileptic seizures. There are, however, many different types of seizures, and it has been difficult to identify factors that distinguish epileptic seizures from other positive signs and symptoms that are not believed to be generated by epileptic neuronal mechanisms, such as hallucinations, myoclonus, other movement disorders, and migraine. The International League against Epilepsy (ILAE) defines an epileptic seizure as “a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain” (Fisher et al. 2005). While previous concepts of epileptic seizures referred to an...
KeywordsEpileptic Seizure Temporal Lobe Epilepsy Seizure Type Focal Seizure Mesial Temporal Lobe Epilepsy
List of abbreviations
International League Against Epilepsy
Original research reported by the author was supported in part by Grants NS-02808, NS-15654, and NS-33310.
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