An evaluation of single dipole solutions to extended sources in EEG and MEG

Geertjan Huiskamp*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

Interictal spikes as observed in epilepsy patients are assumed to be generated by relatively large patches of activated cortex. In order to check the validity of single dipole solutions to such spikes in EEG and MEG a simulation study is performed in a realistically shaped cortical model. It is shown that both in EEG and MEG the center of activated cortex can be misrepresented by single dipole solutions by more then 1 cm. The geometry of sulci and gyri determines where, for which modality, this effect is larger.

Original languageEnglish
Title of host publication2011 8th International Symposium on Noninvasive Functional Source Imaging of the Brain and Heart and the 2011 8th International Conference on Bioelectromagnetism, NFSI and ICBEM 2011
Pages32-34
Number of pages3
DOIs
Publication statusPublished - 28 Jul 2011
Event2011 8th International Symposium on Noninvasive Functional Source Imaging of the Brain and Heart and the 2011 8th International Conference on Bioelectromagnetism, NFSI and ICBEM 2011 - Banff, AB, Canada
Duration: 13 May 201116 May 2011

Publication series

Name2011 8th International Symposium on Noninvasive Functional Source Imaging of the Brain and Heart and the 2011 8th International Conference on Bioelectromagnetism, NFSI and ICBEM 2011

Conference

Conference2011 8th International Symposium on Noninvasive Functional Source Imaging of the Brain and Heart and the 2011 8th International Conference on Bioelectromagnetism, NFSI and ICBEM 2011
Country/TerritoryCanada
CityBanff, AB
Period13/05/1116/05/11

Keywords

  • dipole
  • EEG
  • epilepsy
  • interictal spikes
  • MEG
  • source modeling

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