Neurophysiology: Seizure Onset and Propagation: Application of Advanced Signal Analysis to Intracranial Recordings

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Epileptic seizures are brief, transient events characterized by rapidly changing dynamics. Partial seizures, the most common seizure type, and one often refractory to medications, originate from focal brain regions and have variable patterns of propagation. In the presurgical evaluations of some patients, intracranial recording arrays are needed to better define the seizure focus. Digital processing, high frequency sampling rates, and more extensive or customized electrode arrays can provide a more complete assessment of patterns of seizure onset and propagation. These advanced analyses can supplement visual analyses of ictal recordings and provide new insights. Gabor atom density (a composite measure of signal complexity) and short-time direct transfer function are two examples of new methods that can provide new clues about seizure onset and propagation.

Original languageEnglish (US)
Title of host publicationEncyclopedia of Basic Epilepsy Research
PublisherElsevier Inc.
Pages1613-1620
Number of pages8
ISBN (Print)9780123739612
DOIs
StatePublished - Jan 1 2009

Keywords

  • Activity flow
  • Complexity
  • EEG
  • Gabor atom density
  • Matching pursuit
  • Multichannel analysis
  • Propagation
  • Seizure onset
  • Time-frequency decomposition

ASJC Scopus subject areas

  • Medicine(all)
  • Neuroscience(all)

Fingerprint Dive into the research topics of 'Neurophysiology: Seizure Onset and Propagation: Application of Advanced Signal Analysis to Intracranial Recordings'. Together they form a unique fingerprint.

Cite this