Virtual depth-electrode measurement using MEG eigenspace beamformer

K. Sekihara, David Poeppel, Y. Miyashita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have developed a method that can estimate the time course of a neural activity at a predetermined location with a high signal-to-noise ratio. Using this method, an MEG sensor array can perform like a virtual depth electrode in vivo. The developed method consists of two steps: the first step estimating the orientation of a neural source and the second step estimating its activity time course. The second step uses the eigenspace beamformer, which is known to give the signal-to-noise ratio higher than that from the conventional minimum-variance beamformer.

Original languageEnglish (US)
Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
PublisherIEEE
Pages464
Number of pages1
Volume1
ISBN (Print)0780356756
StatePublished - 1999
EventProceedings 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: Oct 13 1999Oct 16 1999

Other

OtherProceedings 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)
CityAtlanta, GA, USA
Period10/13/9910/16/99

Fingerprint

Signal to noise ratio
Electrodes
Sensor arrays

ASJC Scopus subject areas

  • Bioengineering

Cite this

Sekihara, K., Poeppel, D., & Miyashita, Y. (1999). Virtual depth-electrode measurement using MEG eigenspace beamformer. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (Vol. 1, pp. 464). IEEE.

Virtual depth-electrode measurement using MEG eigenspace beamformer. / Sekihara, K.; Poeppel, David; Miyashita, Y.

Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 1 IEEE, 1999. p. 464.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sekihara, K, Poeppel, D & Miyashita, Y 1999, Virtual depth-electrode measurement using MEG eigenspace beamformer. in Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. vol. 1, IEEE, pp. 464, 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, 10/13/99.
Sekihara K, Poeppel D, Miyashita Y. Virtual depth-electrode measurement using MEG eigenspace beamformer. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 1. IEEE. 1999. p. 464
Sekihara, K. ; Poeppel, David ; Miyashita, Y. / Virtual depth-electrode measurement using MEG eigenspace beamformer. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 1 IEEE, 1999. pp. 464
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