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Related Experiment Videos

Voluntary palatal tremor in two siblings

C Klein1, E Gehrking, P Vieregge

  • 1Department of Neurology, Medical University of Lübeck, Germany.

Movement Disorders : Official Journal of the Movement Disorder Society
|June 5, 1998
PubMed
Summary
This summary is machine-generated.

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Two siblings with palatal tremor and ear clicks can voluntarily control these sounds by thinking. This suggests a unique variant of palatal tremor, controllable through mental commands.

Area of Science:

  • Neurology
  • Neuroscience
  • Genetics

Background:

  • Palatal tremor (PT) is an involuntary movement disorder affecting the soft palate.
  • It can be symptomatic (secondary to other neurological conditions) or essential (idiopathic).
  • Ear clicks are sometimes associated with palatal myoclonus.

Observation:

  • Two siblings presented with both palatal tremor and audible ear clicks.
  • Both patients could voluntarily initiate, suppress, and modulate the frequency of their palatal tremor and ear clicks.
  • Patients exhibited no signs of cerebellar, brainstem, or other neurological deficits.

Findings:

  • The voluntary control over palatal tremor and ear clicks in these siblings is a novel observation.
  • The familial occurrence suggests a potential genetic component.

Related Experiment Videos

  • The movements could not be definitively classified as symptomatic or essential palatal tremor.

    • Implications:

    • These cases may represent a distinct variant of palatal tremor with unique volitional control.
    • Understanding the neural mechanisms underlying this voluntary control could offer new insights into motor control and tremor disorders.
    • Further research is needed to elucidate the genetic and neurobiological underpinnings of this condition.