Epileptic Seizures and Epilepsy: Definitions Proposed by the International League Against Epilepsy (ILAE) and the International Bureau for Epilepsy (IBE).
Fisher, Robert S. *; van Emde Boas, Walter +; Blume, Warren ++; Elger, Christian [S]; Genton, Pierre [//]; Lee, Phillip [P]; Engel, Jerome Jr. **
[Article] Epilepsia. 46(4):470-472, April 2005.

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Summary: The International League Against Epilepsy (ILAE) and the International Bureau for Epilepsy (IBE) have come to consensus definitions for the terms epileptic seizure and epilepsy. An epileptic seizure is a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain. Epilepsy is a disorder of the brain characterized by an enduring predisposition to generate epileptic seizures and by the neurobiologic, cognitive, psychological, and social consequences of this condition. The definition of epilepsy requires the occurrence of at least one epileptic seizure.

(C) International League Against Epilepsy