MyoclonusMuscle ContractionEpilepsies, MyoclonicMyoclonic Epilepsies, ProgressiveIsometric ContractionLafora DiseaseUnverricht-Lundborg SyndromeUterine ContractionCystatin BMyocardial ContractionClonazepamElectromyographyReflex, AbnormalMyoclonic Cerebellar DyssynergiaEvoked Potentials, SomatosensoryMERRF SyndromeProtein Tyrosine Phosphatases, Non-ReceptorLisurideMuscle, SmoothMuscle RigidityElectroencephalographyElectric StimulationCerebellar AtaxiaAtaxiaMuscle, Skeletal