Extracting cortical current dipoles from MEG recordings

I. Shapira Lots; S. E. Robinson; M. Abeles

doi:10.1016/j.jneumeth.2013.04.024

Extracting cortical current dipoles from MEG recordings

I. Shapira Lots, S. E. Robinson, M. Abeles

Interdisciplinary Brain Science Program

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

A novel way of using synthetic aperture magnetometry to extract local current dipoles is proposed. This method is used to extract the current-dipoles at multiple points in the cortex. It is shown that in this way the correlation between cortical points is lower and falls faster with distance when compared to the original MEG and other methods. Evoked auditory responses are well localized. They show higher signal to noise ratio and are more reproducible then the MEG evoked fields.

Original language	English
Pages (from-to)	190-196
Number of pages	7
Journal	Journal of Neuroscience Methods
Volume	220
Issue number	2
DOIs	https://doi.org/10.1016/j.jneumeth.2013.04.024
State	Published - 15 Nov 2013

Bibliographical note

Funding Information:
This research was supported in part by the I-CORE Program of the Planning and Budgeting Committee and The Israel Science Foundation (grant No. 51/11 ). We thank Dr. Yuval Harpaz for his help in the MEG recordings.

Funding

This research was supported in part by the I-CORE Program of the Planning and Budgeting Committee and The Israel Science Foundation (grant No. 51/11 ). We thank Dr. Yuval Harpaz for his help in the MEG recordings.

Funders	Funder number
Israel Science Foundation	51/11
Planning and Budgeting Committee of the Council for Higher Education of Israel

Keywords

Cortex
Current-dipoles
Evoked-response
MEG
Synthetic-aperture-magnetometry

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10.1016/j.jneumeth.2013.04.024

Cite this

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abstract = "A novel way of using synthetic aperture magnetometry to extract local current dipoles is proposed. This method is used to extract the current-dipoles at multiple points in the cortex. It is shown that in this way the correlation between cortical points is lower and falls faster with distance when compared to the original MEG and other methods. Evoked auditory responses are well localized. They show higher signal to noise ratio and are more reproducible then the MEG evoked fields.",

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Extracting cortical current dipoles from MEG recordings

Abstract

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Keywords

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