To play the videos on this website, you need to be running a
current version of any of the web browsers listed below.
Mandatory seizures
Seizures are not mandatory as some patients do not have clinical seizures. If seizures occur they may be infrequent and sleep-related. The seizure type seen depends on the underlying etiology.
May have
Focal motor seizures (e.g. hemiclonic, negative myoclonus) with or without impaired awareness