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Related Experiment Videos

[The classification of myoclonus]

T Mima1, H Shibasaki

  • 1Department of Brain Pathophysiology, School of Medicine, Kyoto University.

Nihon Rinsho. Japanese Journal of Clinical Medicine
|November 1, 1993
PubMed
Summary

Myoclonus, defined as brief involuntary jerky movements, is classified into cortical and subcortical types based on pathophysiological observations. This review clarifies its definition, clinical features, and pathogenesis.

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Area of Science:

  • Neurology
  • Movement Disorders

Context:

  • The definition and classification of myoclonus have become obscured due to the expansion of its meaning.
  • Understanding the precise definition and classification is crucial for accurate diagnosis and treatment.

Purpose:

  • To redefine myoclonus and present a clear classification system.
  • To discuss the characteristic clinical features, electrophysiological aspects, and pathogenesis of myoclonus.

Summary:

  • Myoclonus is categorized into two main groups: cortical myoclonus, linked to motor cortex activity, and subcortical myoclonus, encompassing various subtypes including spinal myoclonus.
  • The review details the definition, clinical presentation, pathophysiological basis, and electrophysiological findings associated with different types of myoclonus.

Impact:

  • Provides a clearer framework for understanding and diagnosing myoclonus.
  • Aids clinicians and researchers in differentiating between various forms of involuntary movements.

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