Measuring phase synchronization of superimposed signals

Frank C. Meinecke, Andreas Ziehe, Jürgen Kurths, Klaus Robert Müller

Research output: Contribution to journalArticlepeer-review

55 Citations (Scopus)


Phase synchronization is an important phenomenon that occurs in a wide variety of complex oscillatory processes. Measuring phase synchronization can therefore help to gain fundamental insight into nature. In this Letter we point out that synchronization analysis techniques can detect spurious synchronization, if they are fed with a superposition of signals such as in electroencephalography or magnetoencephalography data. We show how techniques from blind source separation can help to nevertheless measure the true synchronization and avoid such pitfalls.

Original languageEnglish
Article number084102
JournalPhysical review letters
Issue number8
Publication statusPublished - 2005 Mar 4

ASJC Scopus subject areas

  • General Physics and Astronomy


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