Self-organized criticality in the epileptic brain

S. D. Cranstoun, G. Worrell, J. Echauz, B. Litt

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

Criticality is a property of complex dynamical systems that can produce large energy release. Examples in nature of such systems are earthquakes, avalanches and volcanoes. It has been recently demonstrated that networks of integrate-and-fire neurons also exhibit such critical behavior where the system energy is related to the degree of synchronized neuronal firing. We have examined electrographic recordings from human epileptic hippocampus and demonstrate that this tissue exhibits self-organized criticality. These findings may explain energy bursting recently found to occur prior to epileptic seizures in the hippocampus and may connect them to integrate-and-fire models.

Original languageEnglish (US)
Pages (from-to)232-233
Number of pages2
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume1
StatePublished - Dec 1 2002
EventProceedings of the 2002 IEEE Engineering in Medicine and Biology 24th Annual Conference and the 2002 Fall Meeting of the Biomedical Engineering Society (BMES / EMBS) - Houston, TX, United States
Duration: Oct 23 2002Oct 26 2002

Keywords

  • EEG
  • Neuronal modeling
  • Nonlinear systems

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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