A flexible and accurate method for electroencephalography rhythms extraction based on circulant singular spectrum analysis

Rhythms extraction from electroencephalography (EEG) signals can be used to monitor the physiological and pathological states of the brain and has attracted much attention in recent studies. A flexible and accurate method for EEG rhythms extraction was proposed by incorporating a novel circulant sin...

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Main Authors: Hai Hu, Zihang Pu, Peng Wang
Format: Article
Language:English
Published: PeerJ Inc. 2022-03-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/13096.pdf
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author Hai Hu
Zihang Pu
Peng Wang
author_facet Hai Hu
Zihang Pu
Peng Wang
author_sort Hai Hu
collection DOAJ
description Rhythms extraction from electroencephalography (EEG) signals can be used to monitor the physiological and pathological states of the brain and has attracted much attention in recent studies. A flexible and accurate method for EEG rhythms extraction was proposed by incorporating a novel circulant singular spectrum analysis (CiSSA). The EEG signals are decomposed into the sum of a set of orthogonal reconstructed components (RCs) at known frequencies. The frequency bandwidth of each RC is limited to a particular brain rhythm band, with no frequency mixing between different RCs. The RCs are then grouped flexibly to extract the desired EEG rhythms based on the known frequencies. The extracted brain rhythms are accurate and no mixed components of other rhythms or artifacts are included. Simulated EEG data based on the Markov Process Amplitude EEG model and experimental EEG data in the eyes-open and eyes-closed states were used to verify the CiSSA-based method. The results showed that the CiSSA-based method is flexible in alpha rhythms extraction and has a higher accuracy in distinguishing between the eyes-open and eyes-closed states, compared with the basic SSA method, the wavelet decomposition method, and the finite impulse response filtering method.
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spelling doaj.art-ec5208f86aea468ea4548fa9cfcdd63e2023-12-03T00:46:33ZengPeerJ Inc.PeerJ2167-83592022-03-0110e1309610.7717/peerj.13096A flexible and accurate method for electroencephalography rhythms extraction based on circulant singular spectrum analysisHai HuZihang PuPeng WangRhythms extraction from electroencephalography (EEG) signals can be used to monitor the physiological and pathological states of the brain and has attracted much attention in recent studies. A flexible and accurate method for EEG rhythms extraction was proposed by incorporating a novel circulant singular spectrum analysis (CiSSA). The EEG signals are decomposed into the sum of a set of orthogonal reconstructed components (RCs) at known frequencies. The frequency bandwidth of each RC is limited to a particular brain rhythm band, with no frequency mixing between different RCs. The RCs are then grouped flexibly to extract the desired EEG rhythms based on the known frequencies. The extracted brain rhythms are accurate and no mixed components of other rhythms or artifacts are included. Simulated EEG data based on the Markov Process Amplitude EEG model and experimental EEG data in the eyes-open and eyes-closed states were used to verify the CiSSA-based method. The results showed that the CiSSA-based method is flexible in alpha rhythms extraction and has a higher accuracy in distinguishing between the eyes-open and eyes-closed states, compared with the basic SSA method, the wavelet decomposition method, and the finite impulse response filtering method.https://peerj.com/articles/13096.pdfRhythms extractionElectroencephalographyCirculant singular spectrum analysisEyes-open and eyes-closed condition
spellingShingle Hai Hu
Zihang Pu
Peng Wang
A flexible and accurate method for electroencephalography rhythms extraction based on circulant singular spectrum analysis
PeerJ
Rhythms extraction
Electroencephalography
Circulant singular spectrum analysis
Eyes-open and eyes-closed condition
title A flexible and accurate method for electroencephalography rhythms extraction based on circulant singular spectrum analysis
title_full A flexible and accurate method for electroencephalography rhythms extraction based on circulant singular spectrum analysis
title_fullStr A flexible and accurate method for electroencephalography rhythms extraction based on circulant singular spectrum analysis
title_full_unstemmed A flexible and accurate method for electroencephalography rhythms extraction based on circulant singular spectrum analysis
title_short A flexible and accurate method for electroencephalography rhythms extraction based on circulant singular spectrum analysis
title_sort flexible and accurate method for electroencephalography rhythms extraction based on circulant singular spectrum analysis
topic Rhythms extraction
Electroencephalography
Circulant singular spectrum analysis
Eyes-open and eyes-closed condition
url https://peerj.com/articles/13096.pdf
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