Decaying of phase synchronization in parkinsonian tremor

Avi Gozolchiani, Shay Moshel, Jeffrey M. Hausdorff, Ely Simon, Jürgen Kurths, Shlomo Havlin

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


We describe effects of the asymmetry of cycles and non-stationarity in time series on the phase synchronization method which may lead to artifacts. We develop a modified method that overcomes these effects and apply it to study parkinsonian tremor. Our results indicate that there is synchronization between two different hands and provide information about the time delay separating their dynamics. These findings suggest that this method may be useful for detecting and quantifying weak synchronization between two non-stationary signals.

Original languageEnglish
Pages (from-to)552-560
Number of pages9
JournalPhysica A: Statistical Mechanics and its Applications
StatePublished - 1 Jul 2006

Bibliographical note

Funding Information:
This work was supported in part by NIH Grants NS-35069, RR-13622, HD-39838 and AG-08812 and by the United States-Israel Bi-National Science Foundation.


  • Delay
  • Nonstationarity
  • Synchronization
  • Synchronization decay
  • Tremor


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