Correlation-dimension and autocorrelation fluctuations in epileptic seizure dynamics

Ying-Cheng Lai, Ivan Osorio, Mary A nn F Harrison, Mark G. Frei

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


We focus on an anomalous scaling region in correlation integral [C(ε)] analysis of electrocorticogram in epilepsy patients. We find that epileptic seizures typically are accompanied by wide fluctuations in the slope of this scaling region. An explanation, based on analyzing the interplay between the autocorrelation and C(ε), is provided for these fluctuations. This anomalous slope appears to be a sensitive measure for tracking (but not predicting) seizures.

Original languageEnglish (US)
Article number031921
Pages (from-to)031921/1-031921/5
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Issue number3
StatePublished - Mar 2002

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics


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