Apparent asynchrony between interictal electric and magnetic spikes

Neuroreport
I MerletF Mauguière

Abstract

We recorded simultaneous multichannel electroencephalogram (EEG) and magnetoencephalogram (MEG) in four children with partial epilepsy. Sources of averaged spikes were modelled with current dipoles. Of 10 spike averages obtained, three peaked simultaneously in MEG and EEG, and in seven averages, the MEG peak preceded the main EEG peak by 9-40 ms. A small positive early EEG signal coincided with the MEG peak in six asynchronous spikes. The simultaneous MEG and EEG spikes originated within 5-23 mm, while sources of asynchronous peaks were 12-67 mm apart. We conclude that non-identical neurone currents underlie the MEG and EEG signals, and emphasize the importance of modelling early phases of EEG spikes when localizing interictal epileptic zones.

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Citations

Apr 7, 2004·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Christoph Baumgartner
May 18, 2004·Epilepsy & Behavior : E&B·Jaime ParraFernando H Lopes da Silva
Mar 27, 1999·Neurophysiologie clinique = Clinical neurophysiology·I MerletF Mauguière
Jul 13, 1999·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·I Merlet, J Gotman
Aug 16, 2002·Epilepsia·Harumi YoshinagaToru Hoshida
Feb 4, 2005·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·José Maria FernandesJoão Paulo Silva Cunha
Dec 5, 2006·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·Georgia RamantaniThomas Bast
Nov 11, 2008·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·Marta SantiusteGalleon Graetz
Sep 23, 2000·Epilepsia·C BaumgartnerL Deecke
Aug 18, 2009·Epilepsia·Ritva Paetau
Sep 22, 2011·Epilepsia·Hermann StefanDaniel Weigel
Sep 7, 2006·Neurosurgery·Jyrki P MäkeläRitva Paetau
Jun 22, 1999·Biological Psychiatry·M ReiteD C Rojas
Jan 1, 2008·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Ekaterina PataraiaChristoph Baumgartner
May 15, 2012·Seizure : the Journal of the British Epilepsy Association·Xin-Tong WuHermann Stefan
Jan 18, 2005·NeuroImage·Ekaterina PataraiaChristoph Baumgartner
May 7, 1999·IEEE Transactions on Bio-medical Engineering·S BailletJ P Hugonin
Aug 7, 2009·Seizure : the Journal of the British Epilepsy Association·Rafal NowakAntonio Russi
May 3, 2001·Journal of Child Neurology·H Otsubo, O C Snead
Jul 26, 2003·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·Gregory L Barkley, Christoph Baumgartner
Nov 3, 2020·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Bernd J VorderwülbeckeSerge Vulliemoz

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