Oscillatory Event Synchrony During Steady State Visual Evoked Potentials

  • François B. Vialatte
  • Justin Dauwels
  • Tomasz M. Rutkowski
  • Andrzej Cichocki

Abstract

In this paper we study the dynamics of distributed neuronal assemblies, through the event synchrony of EEG oscillatory bursts. We recorded EEG signals before, during and after steady-state visual evoked potentials (SSVEP) in medium (16 Hz) and high frequency (32 Hz) ranges. The time-frequency oscillatory events are extracted using bump modeling. Thereafter, the recently introduced stochastic event synchrony (SES) method is applied to compare these patterns between brain areas. Significant effects are shown, demonstrating that not only the background activity is affected by flickering stimulation, but also oscillatory patterns.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • François B. Vialatte
    • 1
  • Justin Dauwels
  • Tomasz M. Rutkowski
  • Andrzej Cichocki
  1. 1.RIKEN Brain Science InstituteSaitamaJapan

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