This article is from the Epilepsy FAQ, by Andrew Patrick (andrew@calvin.dgbt.doc.ca) with numerous contributions by others.
Epilepsy is not related to mental illness. Because of the involvement
of the brain, Epilepsy has been mistakenly associated with psychiatric
disorders. Epilepsy differs from psychiatric disorders in that seizures
last for very brief periods and begin and end abruptly. Further, when
not having seizures, people with Epilepsy need not have any changes in
their mood or behaviour.
 
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