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The Sensitivity of Ear-EEG: Evaluating the Source-Sensor Relationship Using Forward Modeling
Ear-EEG allows to record brain activity in every-day life, for example to study natural behaviour or unhindered social interactions. Compared to conventional scalp-EEG, ear-EEG uses fewer electrodes and covers only a small part of the head. Consequently, ear-EEG will be less sensitive to some cortic...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7593286/ https://www.ncbi.nlm.nih.gov/pubmed/32833181 http://dx.doi.org/10.1007/s10548-020-00793-2 |
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author | Meiser, Arnd Tadel, Francois Debener, Stefan Bleichner, Martin G. |
author_facet | Meiser, Arnd Tadel, Francois Debener, Stefan Bleichner, Martin G. |
author_sort | Meiser, Arnd |
collection | PubMed |
description | Ear-EEG allows to record brain activity in every-day life, for example to study natural behaviour or unhindered social interactions. Compared to conventional scalp-EEG, ear-EEG uses fewer electrodes and covers only a small part of the head. Consequently, ear-EEG will be less sensitive to some cortical sources. Here, we perform realistic electromagnetic simulations to compare cEEGrid ear-EEG with 128-channel cap-EEG. We compute the sensitivity of ear-EEG for different cortical sources, and quantify the expected signal loss of ear-EEG relative to cap-EEG. Our results show that ear-EEG is most sensitive to sources in the temporal cortex. Furthermore, we show how ear-EEG benefits from a multi-channel configuration (i.e. cEEGrid). The pipelines presented here can be adapted to any arrangement of electrodes and can therefore provide an estimate of sensitivity to cortical regions, thereby increasing the chance of successful experiments using ear-EEG. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s10548-020-00793-2) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-7593286 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-75932862020-11-10 The Sensitivity of Ear-EEG: Evaluating the Source-Sensor Relationship Using Forward Modeling Meiser, Arnd Tadel, Francois Debener, Stefan Bleichner, Martin G. Brain Topogr Original Paper Ear-EEG allows to record brain activity in every-day life, for example to study natural behaviour or unhindered social interactions. Compared to conventional scalp-EEG, ear-EEG uses fewer electrodes and covers only a small part of the head. Consequently, ear-EEG will be less sensitive to some cortical sources. Here, we perform realistic electromagnetic simulations to compare cEEGrid ear-EEG with 128-channel cap-EEG. We compute the sensitivity of ear-EEG for different cortical sources, and quantify the expected signal loss of ear-EEG relative to cap-EEG. Our results show that ear-EEG is most sensitive to sources in the temporal cortex. Furthermore, we show how ear-EEG benefits from a multi-channel configuration (i.e. cEEGrid). The pipelines presented here can be adapted to any arrangement of electrodes and can therefore provide an estimate of sensitivity to cortical regions, thereby increasing the chance of successful experiments using ear-EEG. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s10548-020-00793-2) contains supplementary material, which is available to authorized users. Springer US 2020-08-24 2020 /pmc/articles/PMC7593286/ /pubmed/32833181 http://dx.doi.org/10.1007/s10548-020-00793-2 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Original Paper Meiser, Arnd Tadel, Francois Debener, Stefan Bleichner, Martin G. The Sensitivity of Ear-EEG: Evaluating the Source-Sensor Relationship Using Forward Modeling |
title | The Sensitivity of Ear-EEG: Evaluating the Source-Sensor Relationship Using Forward Modeling |
title_full | The Sensitivity of Ear-EEG: Evaluating the Source-Sensor Relationship Using Forward Modeling |
title_fullStr | The Sensitivity of Ear-EEG: Evaluating the Source-Sensor Relationship Using Forward Modeling |
title_full_unstemmed | The Sensitivity of Ear-EEG: Evaluating the Source-Sensor Relationship Using Forward Modeling |
title_short | The Sensitivity of Ear-EEG: Evaluating the Source-Sensor Relationship Using Forward Modeling |
title_sort | sensitivity of ear-eeg: evaluating the source-sensor relationship using forward modeling |
topic | Original Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7593286/ https://www.ncbi.nlm.nih.gov/pubmed/32833181 http://dx.doi.org/10.1007/s10548-020-00793-2 |
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