Scale-invariant fluctuations of the dynamical synchronization in human brain electrical activity

Research output: Contribution to journalArticle

Abstract

The dynamical properties of large-scale, long-term phase synchronization behavior in the alpha range of electroencephalographic signals were investigated. We observed dynamical phase synchronization and presented evidence of an underlying spatiotemporal ordering. Fluctuations in the duration of episodes of intermittent synchrony are scale-invariant. Moreover, the exponent used to describe this behavior is stable across different normal subjects. The results provide a new feature of self-organization in human brain activity and constitute a quantitative basis for modeling its dynamics.

Details

Authors
External organisations
  • RIKEN Center for Brain Science
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Psychology

Keywords

  • Alpha rhythms, Electroencephalographic signals, Phase synchronization, Scale-invariant, Self-organizing systems, Wavelet
Original languageEnglish
Pages (from-to)33-36
Number of pages4
JournalNeuroscience Letters
Volume336
Issue number1
Publication statusPublished - 2003 Jan 9
Publication categoryResearch
Peer-reviewedYes
Externally publishedYes