Disturbed post-movement beta synchronization in Wilson's disease with neurological manifestation

Gertrúd Tamás, Jan Raethjen, Muthuraman Muthuraman, Anikó Folhoffer, Günther Deuschl, F. Szalay, Annamária Takáts, A. Kamondi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We analyzed the changes of post-movement beta synchronization (PMBS) of the electroencephalogram (EEG) in Wilson's disease with neurological manifestation. Our aim was to determine if PMBS in Wilson's disease is altered in a different way than in Parkinson's disease or in essential tremor. Our purpose was to find out whether the analysis of PMBS could help the diagnosis in ambiguous cases. Ten patients with neurological manifestation of Wilson's disease and ten controls performed self-paced movements with the dominant hand during EEG acquisition. Five electrodes above the sensorimotor cortex were selected for evaluation (C3, C1, Cz, C2, C4) as contralateral (C); contralateral medial (CM); medial (M); ipsilateral medial (IM); ipsilateral (I) relative to the dominant hand. Power and latency of PMBS were calculated by time resolved power spectral analysis with multitaper method. PMBS power in the C electrode position was significantly lower in patients than in controls, its contralateral preponderance disappeared in the patient group. In every location, latency of PMBS was significantly longer in the Wilson group compared to controls. More altered PMBS could be measured in patients with both basal ganglia and cerebellar involvements. Since decreased power of PMBS was observed in Parkinson's disease and increased latency in essential tremor, the combined change of PMBS can indicate pathology of different neural circuits and may help the diagnosis in challenging cases.

Original languageEnglish
Pages (from-to)240-244
Number of pages5
JournalNeuroscience Letters
Volume494
Issue number3
DOIs
Publication statusPublished - May 2 2011

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Hepatolenticular Degeneration
Neurologic Manifestations
Essential Tremor
Parkinson Disease
Electroencephalography
Electrodes
Hand
Basal Ganglia
Pathology

Keywords

  • Electroencephalography
  • Post-movement beta synchronization
  • Self-paced movement
  • Spectral power analysis
  • Wilson's disease

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Disturbed post-movement beta synchronization in Wilson's disease with neurological manifestation. / Tamás, Gertrúd; Raethjen, Jan; Muthuraman, Muthuraman; Folhoffer, Anikó; Deuschl, Günther; Szalay, F.; Takáts, Annamária; Kamondi, A.

In: Neuroscience Letters, Vol. 494, No. 3, 02.05.2011, p. 240-244.

Research output: Contribution to journalArticle

Tamás, Gertrúd ; Raethjen, Jan ; Muthuraman, Muthuraman ; Folhoffer, Anikó ; Deuschl, Günther ; Szalay, F. ; Takáts, Annamária ; Kamondi, A. / Disturbed post-movement beta synchronization in Wilson's disease with neurological manifestation. In: Neuroscience Letters. 2011 ; Vol. 494, No. 3. pp. 240-244.
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