Myoclonus (pronounced "my-OCK-lo-nus") is a sudden muscle spasm that you can’t control. It can be a natural reflex – like jumping when something scares you or getting the hiccups from laughing too ...

Myoclonus is characterized by sudden, involuntary jerks, and can be caused by a variety of acquired and genetic factors Clinical neurophysiological tests help to determine the anatomical origin of the ...

Background A 20-year-old woman presented to a specialist epilepsy center with a 3-year history of drug-resistant epileptic seizures, progressive myoclonus, ataxia, and cognitive decline.