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Modeling and interpretation of scalp-EEG and depth-EEG signals during interictal activity.

Abstract : In epileptic patients candidate to surgery, the interpretation of electrophysiological signals recorded invasively (depth-EEG) and non-invasively (scalp-EEG) is a crucial issue to determine epileptogenic network and to define subsequent therapeutic strategy. This issue is addressed in this work through realistic modeling of both scalp-EEG and depth-EEG signals. The model allows for studying the influence, on signals, of source-related parameters leading to the generation of epileptic transient activity (interictal spikes). This parametric study is based on a variety of scenarios in which either spatial or temporal features of the sources of activity are modified. Statistical quantities measured on simulated signals allow for better understanding of the influence of source-related parameters on the information conveyed by these signals, collected from scalp or depth electrodes.
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https://www.hal.inserm.fr/inserm-00188491
Contributor : Lotfi Senhadji <>
Submitted on : Tuesday, November 20, 2007 - 11:04:48 AM
Last modification on : Wednesday, May 16, 2018 - 11:23:08 AM
Long-term archiving on: : Monday, April 12, 2010 - 2:32:56 AM

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Delphine Cosandier-Rimélé, Jean-Michel Badier, Patrick Chauvel, Fabrice Wendling. Modeling and interpretation of scalp-EEG and depth-EEG signals during interictal activity.. Conference proceedings : .. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference, Institute of Electrical and Electronics Engineers (IEEE), 2007, 1, pp.4277-4280. ⟨10.1109/IEMBS.2007.4353281⟩. ⟨inserm-00188491⟩

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