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MEG cortical microstates: Spatiotemporal characteristics, dynamic functional connectivity and stimulus-evoked responses
NeuroImage, Volume: 251, Start page: 119006
Swansea University Author: Jiaxiang Zhang
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DOI (Published version): 10.1016/j.neuroimage.2022.119006
Abstract
EEG microstate analysis is an approach to study brain states and their fast transitions in healthy cognition and disease. A key limitation of conventional microstate analysis is that it must be performed at the sensor level, and therefore gives limited anatomical insight. Here, we generalise the mic...
Published in: | NeuroImage |
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ISSN: | 1053-8119 |
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Elsevier BV
2022
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URI: | https://cronfa.swan.ac.uk/Record/cronfa61345 |
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2024-07-11T15:34:45.5533476 v2 61345 2022-09-26 MEG cortical microstates: Spatiotemporal characteristics, dynamic functional connectivity and stimulus-evoked responses 555e06e0ed9a87608f2d035b3bde3a87 0000-0002-4758-0394 Jiaxiang Zhang Jiaxiang Zhang true false 2022-09-26 MACS EEG microstate analysis is an approach to study brain states and their fast transitions in healthy cognition and disease. A key limitation of conventional microstate analysis is that it must be performed at the sensor level, and therefore gives limited anatomical insight. Here, we generalise the microstate methodology to be applicable to source-reconstructed electrophysiological data. Using simulations of a neural-mass network model, we first established the validity and robustness of the proposed method. Using MEG resting-state data, we uncovered ten microstates with distinct spatial distributions of cortical activation. Multivariate pattern analysis demonstrated that source-level microstates were associated with distinct functional connectivity patterns. We further demonstrated that the occurrence probability of MEG microstates were altered by auditory stimuli, exhibiting a hyperactivity of the microstate including the auditory cortex. Our results support the use of source-level microstates as a method for investigating brain dynamic activity and connectivity at the millisecond scale. Journal Article NeuroImage 251 119006 Elsevier BV 1053-8119 1 5 2022 2022-05-01 10.1016/j.neuroimage.2022.119006 COLLEGE NANME Mathematics and Computer Science School COLLEGE CODE MACS Swansea University This study was supported by European Research Council [grant number 716321]. 2024-07-11T15:34:45.5533476 2022-09-26T11:42:54.4744043 Faculty of Science and Engineering School of Mathematics and Computer Science - Computer Science Luke Tait 1 Jiaxiang Zhang 0000-0002-4758-0394 2 61345__25406__83579e75ee894147a13c4e8f9c55b6f3.pdf 61345_VoR.pdf 2022-10-11T12:09:32.2345868 Output 3161287 application/pdf Version of Record true © 2022 . This is an open access article under the CC BY-NC-ND license true eng http://creativecommons.org/licenses/by-nc-nd/4.0/ |
title |
MEG cortical microstates: Spatiotemporal characteristics, dynamic functional connectivity and stimulus-evoked responses |
spellingShingle |
MEG cortical microstates: Spatiotemporal characteristics, dynamic functional connectivity and stimulus-evoked responses Jiaxiang Zhang |
title_short |
MEG cortical microstates: Spatiotemporal characteristics, dynamic functional connectivity and stimulus-evoked responses |
title_full |
MEG cortical microstates: Spatiotemporal characteristics, dynamic functional connectivity and stimulus-evoked responses |
title_fullStr |
MEG cortical microstates: Spatiotemporal characteristics, dynamic functional connectivity and stimulus-evoked responses |
title_full_unstemmed |
MEG cortical microstates: Spatiotemporal characteristics, dynamic functional connectivity and stimulus-evoked responses |
title_sort |
MEG cortical microstates: Spatiotemporal characteristics, dynamic functional connectivity and stimulus-evoked responses |
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555e06e0ed9a87608f2d035b3bde3a87 |
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555e06e0ed9a87608f2d035b3bde3a87_***_Jiaxiang Zhang |
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Jiaxiang Zhang |
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Luke Tait Jiaxiang Zhang |
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NeuroImage |
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description |
EEG microstate analysis is an approach to study brain states and their fast transitions in healthy cognition and disease. A key limitation of conventional microstate analysis is that it must be performed at the sensor level, and therefore gives limited anatomical insight. Here, we generalise the microstate methodology to be applicable to source-reconstructed electrophysiological data. Using simulations of a neural-mass network model, we first established the validity and robustness of the proposed method. Using MEG resting-state data, we uncovered ten microstates with distinct spatial distributions of cortical activation. Multivariate pattern analysis demonstrated that source-level microstates were associated with distinct functional connectivity patterns. We further demonstrated that the occurrence probability of MEG microstates were altered by auditory stimuli, exhibiting a hyperactivity of the microstate including the auditory cortex. Our results support the use of source-level microstates as a method for investigating brain dynamic activity and connectivity at the millisecond scale. |
published_date |
2022-05-01T05:19:38Z |
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10.916535 |