Impaired rhythm generation in essential tremor

Zsuzsanna Farkas, Imre Szirmai, Anita Kamondi

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

It has been suggested that the cerebellum plays a role in the event-based timing of synchronized 'repetitive movements. We hypothesized that regularity of rhythmic movements in essential tremor (ET) is impaired, since several lines of evidence suggest the involvement of the cerebellum in the pathomechanism of ET. To test this assumption, we examined the regularity and the maximum frequency of auditory paced repetitive movements at slow and fast stimulus rate in 34 ET patients. Variability of rhythmic finger tapping and alternating hand movements, defined by the standard deviation of movement offset before or after the pacing signal, was significantly higher compared to healthy controls. Timing of rhythmic movements of the two hands was disturbed to the same degree. Our results suggest a severe deficit of event-based rhythm generation on both sides in ET, supporting the presumed bilateral cerebellar dysfunction in this disorder.

Original languageEnglish
Pages (from-to)1196-1199
Number of pages4
JournalMovement Disorders
Volume21
Issue number8
DOIs
Publication statusPublished - Aug 1 2006

Keywords

  • Cerebellum
  • Essential tremor
  • Event-based timing
  • Finger tapping

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology

Fingerprint Dive into the research topics of 'Impaired rhythm generation in essential tremor'. Together they form a unique fingerprint.

  • Cite this