Sensory Training to Treat Focal Dystonia

This study has been completed.
Information provided by:
National Institutes of Health Clinical Center (CC) Identifier:
First received: October 4, 2000
Last updated: March 3, 2008
Last verified: November 2001

This study will examine the effectiveness of Braille reading as a sensory training program for improving symptoms of focal (localized) dystonia, a movement disorder caused by sustained muscle contractions. Musicians, writers, typists, athletes and others whose work involves frequent repetitive movements may develop focal dystonia of the hand. Dystonia patients have an impaired sense of touch, and it is thought that symptoms may improve with sensory tactile (touch) training.

Patients with task-specific dystonia and healthy normal volunteers may be eligible for this 8-week study. Patients will undergo evaluation of their dystonia and a complete neurologic examination. Healthy volunteers will have a complete physical examination.

On the first day of the study, after 4 weeks and after 8 weeks, all participants will have a gap detection test for sensory perception testing. The test uses eight plastic devices called JVP-Domes with ridges of different widths on the surface. The subject's arm and hand are held in palm-up position and the right index finger is tested for about 1 second 20 times with each dome. The subject is asked to report whether the direction of the dome is vertical or horizontal. The test takes about 30 minutes. Patients with dystonia will also have a their symptoms evaluated at these visits. The evaluation involves completing a written questionnaire and writing a paragraph.

All participants will be trained in Braille reading at NIH. Sessions will be given every day the first week, twice a week the second and third weeks, and once a week the following weeks.

Dystonic Disorder

Study Type: Observational
Official Title: Sensory Training for Treatment of Focal Dystonia

Resource links provided by NLM:

Further study details as provided by National Institutes of Health Clinical Center (CC):

Estimated Enrollment: 22
Study Start Date: September 2000
Estimated Study Completion Date: November 2001
Detailed Description:

It has been hypothesized that dystonia may be a sensory disorder. Animal studies as well as physiological studies of patients with focal dystonia have demonstrated sensory dysfunction. It has also been shown that patients with dystonia have impaired sensory perception including when assessed with the JVP gap detection test. This could possibly result from enlargement and dedifferentiation of representations in the sensory cortex. We therefore hypothesize that sensory training could improve the impaired sensory perception and hence improve the dystonia. This study will examine if Braille reading as a sensory training program can correct the sensory perception and the dystonia. The primary outcome is improvement in the JVP gap detection test.


Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes

Patients with idiopathic task specific dystonia and healthy normal volunteers.

Patients must not be receiving botulinum-toxin treatment or other medications for the past three months prior to entering the study.

Patients must be able to keep their hand in a pronated 'reading' position for one hour.

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Please refer to this study by its identifier: NCT00006336

United States, Maryland
National Institute of Neurological Disorders and Stroke (NINDS)
Bethesda, Maryland, United States, 20892
Sponsors and Collaborators
National Institute of Neurological Disorders and Stroke (NINDS)
  More Information

Publications: Identifier: NCT00006336     History of Changes
Other Study ID Numbers: 000227, 00-N-0227
Study First Received: October 4, 2000
Last Updated: March 3, 2008
Health Authority: United States: Federal Government

Keywords provided by National Institutes of Health Clinical Center (CC):
Gap Detection Test
Visual Analog and Verbal Scale
Writing Standard Paragraph
Braille Reading Grade I

Additional relevant MeSH terms:
Dystonic Disorders
Central Nervous System Diseases
Movement Disorders
Nervous System Diseases
Neurologic Manifestations
Signs and Symptoms processed this record on October 02, 2015