A seizure happens when there are certain types of abnormal electrical activity in the brain. When two or more seizures occur, it is considered a seizure disorder (epilepsy). While there are many different types of seizures, the main categories are:
- Generalized seizure—onset is throughout the brain (both hemispheres)
- Partial seizure (focal seizure)—begins within certain areas of the brain
Copyright © Nucleus Medical Media, Inc.
Last reviewedJune 2012by Kari Kassir, MD
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