What is a "myoclonic" seizure?

What is a "myoclonic" seizure?

Charles Ribak, Ph.D. (Professor of Anatomy and Neurobiology, UC Irvine School of Medicine) gives expert video advice on: What causes a seizure?; If I had a seizure, do I have epilepsy?; Are people with epilepsy more creative? and more...

A myoclonic seizure is a type of uncontrolled movement involving the same kind of clonic movement, this muscular clonic movement. We don't know whether it's an involuntary movement, almost like a nervous tic, or whether it's an actual seizure that is underlying this behavioral movement but the myoclonic seizure is not categorized as part of a type of epilepsy persay.