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  2. Myoclonus - Wikipedia

    en.wikipedia.org/wiki/Myoclonus

    Myoclonus is a brief, involuntary, irregular (lacking rhythm) twitching of a muscle, a joint, or a group of muscles, different from clonus, which is rhythmic or regular. Myoclonus (myo-"muscle", clonus "spasm") describes a medical sign and, generally, is not a diagnosis of a disease.

  3. Opsoclonus myoclonus syndrome - Wikipedia

    en.wikipedia.org/wiki/Opsoclonus_myoclonus_syndrome

    Opsoclonus myoclonus syndrome (OMS), also known as opsoclonus-myoclonus-ataxia (OMA), is a rare neurological disorder of unknown cause which appears to be the result of an autoimmune process involving the nervous system. It is an extremely rare condition, affecting as few as 1 in 10,000,000 people per year.

  4. Myoclonic dystonia - Wikipedia

    en.wikipedia.org/wiki/Myoclonic_dystonia

    Myoclonus is usually classified physiologically to optimize treatment. Myoclonus is a precursor effect to myoclonus dystonia and most commonly begins in childhood or adolescence. [4] [5] Myoclonus is classified as cortical, subcortical, peripheral or spinal. Cortical myoclonus is the most common of these four and affects the upper limbs and face.

  5. Palatal myoclonus - Wikipedia

    en.wikipedia.org/wiki/Palatal_myoclonus

    Palatal myoclonus is a rare condition in which there are rhythmic jerky movements or a rapid spasm of the palatal (roof of the mouth) muscles. Chronic clonus is often due to lesions of the central tegmental tract (which connects the red nucleus to the ipsilateral inferior olivary nucleus ).

  6. Hypnic jerk - Wikipedia

    en.wikipedia.org/wiki/Hypnic_jerk

    A hypnic jerk, hypnagogic jerk, sleep start, sleep twitch, myoclonic jerk, or night start is a brief and sudden involuntary contraction of the muscles of the body which occurs when a person is beginning to fall asleep, often causing the person to jump and awaken suddenly for a moment.

  7. Myoclonic epilepsy - Wikipedia

    en.wikipedia.org/wiki/Myoclonic_epilepsy

    Familial adult myoclonus Epilepsy (FAME) This is a condition characterized by the repetition of non-coding sequences and has been identified using various abbreviations. Initially, it was associated with four primary gene locations: FAME1 (8q23.3–q24.1), FAME2 (2p11.1–q12.1), FAME3 (5p15.31–p15.1), and FAME4 (3q26.32–3q28).

  8. GOSR2-related progressive myoclonus ataxia - Wikipedia

    en.wikipedia.org/wiki/GOSR2-related_progressive...

    GOSR2-related progressive myoclonus ataxia, also known as Progressive myoclonic epilepsy type 6 is a rare genetic type of progressive myoclonus ataxia which is characterized by progressive myoclonic epilepsy with an early onset which is associated with generalized tonic-clonic seizures, petit mal seizures, and drop attacks, variable degrees of scoliosis, areflexia, high levels of creatine ...

  9. Benign neonatal sleep myoclonus - Wikipedia

    en.wikipedia.org/.../Benign_neonatal_sleep_myoclonus

    Benign neonatal sleep myoclonus (BNSM) is the occurrence of myoclonus (jerky movements) during sleep. [1] It is not associated with seizures. [1] BNSM occurs in the first few weeks of life, and usually resolves on its own within the first 3-4 months of life. [2]