What is a "focal" seizure?

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What is a "focal" seizure?

Charles Ribak, Ph.D. (Professor of Anatomy and Neurobiology, UC Irvine School of Medicine) gives expert video advice on: What is a "photosensitivity" seizure trigger?; What is an "automatism"? and more...

With epilepsy, a focal seizure is one that arises from a very distinct localization in the brain. So, if you have an epileptic seizure that always starts with your right hand shaking, then this would be a focal seizure that would be localized to the motor cortex on the left hemisphere.

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