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| Myoclonus Myoclonus, Action | Myoclonus, Nocturnal | Myoclonus, Palatal | Polymyoclonus | Myoclonic Jerk | Myoclonic Jerking | Myoclonus Simplex | Myoclonus, Eyelid | Myoclonus, Intention | Myoclonus, Lower Extremity | Myoclonus, Oculopalatal | Jerk, Myoclonic Involuntary shock-like contractions, irregular in rhythm and amplitude, followed by relaxation, of a muscle or a group of muscles. This condition may be a feature of some CENTRAL NERVOUS SYSTEMS DISEASES (e.g., EPILEPSY, MYOCLONIC). Nocturnal myoclonus may represent a normal physiologic event or occur as the principal feature of the NOCTURNAL MYOCLONUS SYNDROME. (From Adams et al., Principles of Neurology, 6th ed, pp102-3). | |
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