NDLI: MEG analysis with new spatial filter

Content Provider	IEEE Xplore Digital Library
Author	Okawa, S. Honda, S.
Copyright Year	2003
Description	Author affiliation: Graduate Sch. of Sci. & Technol., Keio Univ., Yokohama, Japan (Okawa, S.; Honda, S.)
Abstract	The combination of ICA and new spatial filtering method for MEG analysis are proposed, and some numerical experiments were conducted to ascertain the efficiency of the method and the limit of the estimation without temporal and any prior information but only with the physical model of MEG. The new spatial filter is defined with Kullback-Leibler divergence, and succeeds to estimate the maximum of the current density on the exactly or almost accurate position. Here ICA was introduced to estimate the source signal and it has received some attention in MEG signal processing for elimination of artifacts and noises or extraction of the signal occurred by brain activity. And the proposed image reconstruction method inhibited the expansion of the estimated current density distribution, and it gave the more reliable estimated result. Thus, the combination of ICA and the new spatial filter has feasibility of being a powerful tool for MEG analysis.
Starting Page	1304
Ending Page	1309
File Size	356714
Page Count	6
File Format	PDF
ISBN	0780383524
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-08-04
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	SICE
Subject Keyword	Spatial filters Magnetic field measurement Independent component analysis Current density Inverse problems Brain modeling Magnetic sensors Magnetic analysis Current measurement Magnetic fields
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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