Preliminary study of relationship between head models and computed potentials in EEG forward computation

Peng Wen; Fangpo He; Karl Sammut

doi:10.1109/IEMBS.1999.802516

Preliminary study of relationship between head models and computed potentials in EEG forward computation

Peng Wen, Fangpo He, Karl Sammut

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Two issues relating to the modelling of human heads are addressed in this paper. First, the electrical properties of head tissues are studied. The inhomogeneity inherited in each tissue, which has so far been ignored in the literature, is discussed. A head model comprising tissue inhomogeneity is constructed using the so-called pseudo conductivity method. Second, in order to study the relationship between the model and the computed solution, a set of simulations are carried out based on the above model. The result shows that there is no significant difference in the statistic parameters between models that are constructed using a variety of pseudo conductivity assignments based on a common normal distribution function. This observation is promising as it means that it is not necessary to find out the exact head model from the statistic aspect in EEG forward computation.

Original language	English
Title of host publication	Proceedings of the First Joint BMES/EMBS Conference
Subtitle of host publication	1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Annual Fall Meeting of the Biomedical Engineering Society
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	438-438
Number of pages	1
ISBN (Print)	0780356756, 9780780356757
DOIs	https://doi.org/10.1109/IEMBS.1999.802516
Publication status	Published - 1999
Event	Proceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS) - Atlanta, GA, USA Duration: 13 Oct 1999 → 16 Oct 1999

Publication series

Name	Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
ISSN (Print)	0589-1019
ISSN (Electronic)	1094-687X

Conference

Conference	Proceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS)
City	Atlanta, GA, USA
Period	13/10/99 → 16/10/99

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10.1109/IEMBS.1999.802516Licence: In Copyright

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Wen, P., He, F., & Sammut, K. (1999). Preliminary study of relationship between head models and computed potentials in EEG forward computation. In Proceedings of the First Joint BMES/EMBS Conference: 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Annual Fall Meeting of the Biomedical Engineering Society (pp. 438-438). (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IEMBS.1999.802516

Wen, Peng ; He, Fangpo ; Sammut, Karl. / Preliminary study of relationship between head models and computed potentials in EEG forward computation. Proceedings of the First Joint BMES/EMBS Conference: 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Annual Fall Meeting of the Biomedical Engineering Society. Institute of Electrical and Electronics Engineers Inc., 1999. pp. 438-438 (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings).

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title = "Preliminary study of relationship between head models and computed potentials in EEG forward computation",

abstract = "Two issues relating to the modelling of human heads are addressed in this paper. First, the electrical properties of head tissues are studied. The inhomogeneity inherited in each tissue, which has so far been ignored in the literature, is discussed. A head model comprising tissue inhomogeneity is constructed using the so-called pseudo conductivity method. Second, in order to study the relationship between the model and the computed solution, a set of simulations are carried out based on the above model. The result shows that there is no significant difference in the statistic parameters between models that are constructed using a variety of pseudo conductivity assignments based on a common normal distribution function. This observation is promising as it means that it is not necessary to find out the exact head model from the statistic aspect in EEG forward computation.",

author = "Peng Wen and Fangpo He and Karl Sammut",

year = "1999",

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series = "Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "438--438",

booktitle = "Proceedings of the First Joint BMES/EMBS Conference",

note = "Proceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS) ; Conference date: 13-10-1999 Through 16-10-1999",

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Wen, P, He, F & Sammut, K 1999, Preliminary study of relationship between head models and computed potentials in EEG forward computation. in Proceedings of the First Joint BMES/EMBS Conference: 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Annual Fall Meeting of the Biomedical Engineering Society. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 438-438, Proceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS), Atlanta, GA, USA, 13/10/99. https://doi.org/10.1109/IEMBS.1999.802516

Preliminary study of relationship between head models and computed potentials in EEG forward computation. / Wen, Peng; He, Fangpo; Sammut, Karl.
Proceedings of the First Joint BMES/EMBS Conference: 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Annual Fall Meeting of the Biomedical Engineering Society. Institute of Electrical and Electronics Engineers Inc., 1999. p. 438-438 (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - Two issues relating to the modelling of human heads are addressed in this paper. First, the electrical properties of head tissues are studied. The inhomogeneity inherited in each tissue, which has so far been ignored in the literature, is discussed. A head model comprising tissue inhomogeneity is constructed using the so-called pseudo conductivity method. Second, in order to study the relationship between the model and the computed solution, a set of simulations are carried out based on the above model. The result shows that there is no significant difference in the statistic parameters between models that are constructed using a variety of pseudo conductivity assignments based on a common normal distribution function. This observation is promising as it means that it is not necessary to find out the exact head model from the statistic aspect in EEG forward computation.

AB - Two issues relating to the modelling of human heads are addressed in this paper. First, the electrical properties of head tissues are studied. The inhomogeneity inherited in each tissue, which has so far been ignored in the literature, is discussed. A head model comprising tissue inhomogeneity is constructed using the so-called pseudo conductivity method. Second, in order to study the relationship between the model and the computed solution, a set of simulations are carried out based on the above model. The result shows that there is no significant difference in the statistic parameters between models that are constructed using a variety of pseudo conductivity assignments based on a common normal distribution function. This observation is promising as it means that it is not necessary to find out the exact head model from the statistic aspect in EEG forward computation.

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Wen P, He F, Sammut K. Preliminary study of relationship between head models and computed potentials in EEG forward computation. In Proceedings of the First Joint BMES/EMBS Conference: 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Annual Fall Meeting of the Biomedical Engineering Society. Institute of Electrical and Electronics Engineers Inc. 1999. p. 438-438. (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings). doi: 10.1109/IEMBS.1999.802516

Preliminary study of relationship between head models and computed potentials in EEG forward computation

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