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Related Experiment Video

Updated: May 29, 2026

Using Unidirectional Rotations to Improve Vestibular System Asymmetry in Patients with Vestibular Dysfunction
05:02

Using Unidirectional Rotations to Improve Vestibular System Asymmetry in Patients with Vestibular Dysfunction

Published on: August 30, 2019

Hemiballismus: current concepts and review.

Jason S Hawley1, William J Weiner

  • 1MAJ MC US Army, Neurology/Movement Disorders, Walter Reed Army Medical Center, Washington, DC 20307, USA. Jshawley1@yahoo.com

Parkinsonism & Related Disorders
|September 21, 2011
PubMed
Summary

Hemiballismus, a rare movement disorder, involves limb movements caused by basal ganglia lesions. Most patients experience favorable prognoses with potential for complete resolution through various treatments.

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Area of Science:

  • Neurology
  • Movement Disorders
  • Neuroscience

Background:

  • Hemiballismus is a rare hyperkinetic movement disorder.
  • Characterized by involuntary, high-amplitude, and often violent movements of a limb or limbs on one side of the body.
  • Typically associated with acute focal lesions in the contralateral basal ganglia, particularly the subthalamic nucleus (STN).

Purpose of the Study:

  • To elucidate the pathophysiology of hemiballismus.
  • To explore the functional interactions within the basal ganglia.
  • To propose newer models of basal ganglia function.

Main Methods:

  • Review of existing literature on hemiballismus.
  • Analysis of case studies and etiological factors.
  • Correlation of lesion locations with clinical presentation.

Related Experiment Videos

Last Updated: May 29, 2026

Using Unidirectional Rotations to Improve Vestibular System Asymmetry in Patients with Vestibular Dysfunction
05:02

Using Unidirectional Rotations to Improve Vestibular System Asymmetry in Patients with Vestibular Dysfunction

Published on: August 30, 2019

Main Results:

  • Vascular causes and nonketotic hyperglycemia are the most common etiologies.
  • Understanding pathophysiology provides insights into basal ganglia function.
  • Newer models of basal ganglia function are proposed.

Conclusions:

  • Prognosis is generally favorable, with most patients achieving complete resolution.
  • Medical and surgical interventions can effectively manage severe movements.
  • Insights from hemiballismus contribute to understanding basal ganglia circuitry.