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Brain source localization using reduced EEG sensors

Brain source activation is caused due to certain mental or physical task, and such activation is localized by using various optimization techniques. This localization has vital application for diagnoses of various brain disorders such as epilepsy, schizophrenia, Alzheimer, depression, Parkinson and...

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Main Authors: Jatoi, M.A., Kamel, N.
Format: Article
Published: Springer London 2018
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85047149659&doi=10.1007%2fs11760-018-1298-5&partnerID=40&md5=c837eefb4a9aa2c2193c1fa2047756ed
http://eprints.utp.edu.my/20918/
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spelling my.utp.eprints.209182019-02-26T02:44:16Z Brain source localization using reduced EEG sensors Jatoi, M.A. Kamel, N. Brain source activation is caused due to certain mental or physical task, and such activation is localized by using various optimization techniques. This localization has vital application for diagnoses of various brain disorders such as epilepsy, schizophrenia, Alzheimer, depression, Parkinson and stress. Various neuroimaging techniques (such as EEG, fMRI, MEG) are used to record brain activity for inference and estimation of active source locations. EEG employs set of sensors which are placed on scalp to measure electric potentials. These sensors have significant role in overall system complexity, computational time and system cost. Hence, sensor reduction for EEG source localization has been a topic of interest for researchers to develop a system with improved localization precision, less system complexity and reduced cost. This research work discusses and implements the brain source localization for real-time and synthetically generated EEG dataset with reduced number of sensors. For this, various optimization algorithms are used which include Bayesian framework-based multiple sparse priors (MSP), classical low-resolution brain electromagnetic tomography (LORETA), beamformer and minimum norm estimation (MNE). The results obtained are then compared in terms of negative variational free energy, localization error and computational time measured in seconds. It is observed that multiple sparse priors (MSP) with increased number of patches performed best even with reduced number of sensors, i.e., 7 instead of 74. The results are shown valid for synthetic EEG data at low SNR level, i.e., 5 dB and real-time EEG data, respectively. © 2018 Springer-Verlag London Ltd., part of Springer Nature Springer London 2018 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85047149659&doi=10.1007%2fs11760-018-1298-5&partnerID=40&md5=c837eefb4a9aa2c2193c1fa2047756ed Jatoi, M.A. and Kamel, N. (2018) Brain source localization using reduced EEG sensors. Signal, Image and Video Processing . pp. 1-8. http://eprints.utp.edu.my/20918/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description Brain source activation is caused due to certain mental or physical task, and such activation is localized by using various optimization techniques. This localization has vital application for diagnoses of various brain disorders such as epilepsy, schizophrenia, Alzheimer, depression, Parkinson and stress. Various neuroimaging techniques (such as EEG, fMRI, MEG) are used to record brain activity for inference and estimation of active source locations. EEG employs set of sensors which are placed on scalp to measure electric potentials. These sensors have significant role in overall system complexity, computational time and system cost. Hence, sensor reduction for EEG source localization has been a topic of interest for researchers to develop a system with improved localization precision, less system complexity and reduced cost. This research work discusses and implements the brain source localization for real-time and synthetically generated EEG dataset with reduced number of sensors. For this, various optimization algorithms are used which include Bayesian framework-based multiple sparse priors (MSP), classical low-resolution brain electromagnetic tomography (LORETA), beamformer and minimum norm estimation (MNE). The results obtained are then compared in terms of negative variational free energy, localization error and computational time measured in seconds. It is observed that multiple sparse priors (MSP) with increased number of patches performed best even with reduced number of sensors, i.e., 7 instead of 74. The results are shown valid for synthetic EEG data at low SNR level, i.e., 5 dB and real-time EEG data, respectively. © 2018 Springer-Verlag London Ltd., part of Springer Nature
format Article
author Jatoi, M.A.
Kamel, N.
spellingShingle Jatoi, M.A.
Kamel, N.
Brain source localization using reduced EEG sensors
author_facet Jatoi, M.A.
Kamel, N.
author_sort Jatoi, M.A.
title Brain source localization using reduced EEG sensors
title_short Brain source localization using reduced EEG sensors
title_full Brain source localization using reduced EEG sensors
title_fullStr Brain source localization using reduced EEG sensors
title_full_unstemmed Brain source localization using reduced EEG sensors
title_sort brain source localization using reduced eeg sensors
publisher Springer London
publishDate 2018
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85047149659&doi=10.1007%2fs11760-018-1298-5&partnerID=40&md5=c837eefb4a9aa2c2193c1fa2047756ed
http://eprints.utp.edu.my/20918/
_version_ 1738656250523025408
score 13.211869

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