NDLI: Spatial weighted averaging for ERP denoising in EEG data

Content Provider	IEEE Xplore Digital Library
Author	Ivannikov, A. Karkkainen, T. Ristaniemi, T. Lyytinen, H.
Copyright Year	2010
Description	Author affiliation: Department of Mathematical Information Technology, University of Jyväskylä, 40014 Finland (Ivannikov, A.; Karkkainen, T.; Ristaniemi, T.) \|\| Department of Psychology, University of Jyväskylä, 40014 Finland (Lyytinen, H.)
Abstract	In the present paper we intend to improve the practical accuracy of ERP denoising methods proposed in earlier research by allowing them to take into account possible violations of the underlying assumptions, which often take place in practice. Here we consider ERP denoising approaches operating within the framework of the linear instantaneous mixing model that consist three steps: (1) forward linear transformation, (2) identification of the components related to signal and noise subspaces, (3) inverse transformation during which the components that belong to the noise subspace are disregarded, i.e. dimension reduction in the component space. The separation matrix is found based on problem-specific assumptions formalized in terms of the second-order statistics. The subspace separation problem is concerned rather than the source separation. For the purpose of increasing the accuracy of spatial separation of ERP and noise sources we propose a spatial weighted averaging method analogous to weighted averaging technique developed for single channel use, which takes into account variable variances of the sources over trials.
Starting Page	1
Ending Page	6
File Size	4036476
Page Count	6
File Format	PDF
ISBN	9781424462858
e-ISBN	9781424462872
DOI	10.1109/ISCCSP.2010.5463494
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-03-03
Publisher Place	Cyprus
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Source separation Electromagnetic measurements Noise reduction Psychology Independent component analysis Signal processing Enterprise resource planning Electroencephalography Hardware
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in