Reproducibility and validity of electric source localisation with high-resolution electroencephalography

Electroencephalography and Clinical Neurophysiology
R Kristeva-FeigeC H Lücking

Abstract

The present study investigates the reproducibility and validity of the EEG source localisation of somatosensory evoked potentials (SEPs) using high-resolution EEG (61 scalp electrodes) and a source reconstruction on the basis of the individual brain morphology as obtained from magnetic resonance images (MRIs). The somatosensory evoked potentials (SEPs) to electrical stimulation of the right median nerve were repeatedly collected from the scalp of one healthy subject in 9 replications run on 9 different days. The source reconstruction for the 19 ms SEP component was performed by using a single moving dipole model as a source model. Two different head models were used: a spherical 3 shell model and a more realistically shaped 3 compartment model computed using the boundary element method (BEM). The source locations of the 19 ms SEP component were found to be highly reproducible using both head models: the mean standard deviation of the dipole locations was found to be 2.6 mm for the 3 shell model and 4 mm for the more realistically shaped head model. By projection into the individual MRI, the dipoles resulting from either head models were found to be located within the postcentral gyrus. The electric source locations were consist...Continue Reading

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Citations

Jul 29, 1998·Electroencephalography and Clinical Neurophysiology·C GrimmC H Lücking
Jul 29, 1998·Electroencephalography and Clinical Neurophysiology·H J HuppertzC H Lücking
Mar 29, 2001·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·P SchwenkreisM Tegenthoff
Aug 22, 2001·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·H J HuppertzR Kristeva-Feige
Jul 26, 2002·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·D E BentleyA K P Jones
Oct 11, 2001·Proceedings of the National Academy of Sciences of the United States of America·B PlegerM Tegenthoff
Dec 25, 2002·Journal of the American Academy of Child and Adolescent Psychiatry·Lance O Bauer, Victor M Hesselbrock
Sep 16, 2009·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·Agustina M LascanoChristoph M Michel
Sep 24, 2010·Journal of Neurophysiology·Ulf BaumgärtnerFred A Lenz
Aug 4, 2004·Neuroscience Letters·Rumyana KristevaSibylla Hummel
Nov 22, 2007·The European Journal of Neuroscience·Peter SchwenkreisHubert R Dinse
May 9, 2001·IEEE Transactions on Medical Imaging·M Otte
Dec 9, 2004·Physics in Medicine and Biology·Zeynep Akalin-Acar, Nevzat G Gençer
Oct 29, 2020·Journal of Neurophysiology·Harri PiitulainenMathieu Bourguignon

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