Thalamus-to-cortex seizure pathway: a new coherence approach using sinusoidal modelling

David L. Sherman, Yien Che Tsai, Lisa Ann Rossell, Marek A. Mirski, Nitish V. Thakor

Research output: Contribution to journalConference article

Abstract

A new method of measuring coherence between EEG channels is proposed for modeling the level of linear association during epileptic seizures. This method relies upon modelling the clonic seizure activity as a sum of sinusoids. We estimate contributions from correlated and uncorrelated sinusoidal components from information contained in auto- and cross-correlation matrices. Coherence estimates are formed from the ratio of correlated to total power. We illustrate the value of this method by examination of the strength of correlation between seizure EEG from specific thalamic nuclei and cortex in an animal model of generalized epilepsy.

Original languageEnglish (US)
Pages (from-to)2222-2223
Number of pages2
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume5
StatePublished - Dec 1 1996
EventProceedings of the 1996 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 5) - Amsterdam, Neth
Duration: Oct 31 1996Nov 3 1996

ASJC Scopus subject areas

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

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