Comparison of EEG Synchrony Measures for Post-Stroke Neurorehabilitation

Teiji Kawano; Noriaki Hattori; Megumi Hatakenaka; Yutaka Uno; Hajime Yagura; Hiroaki Fujimoto; Tomomi Yoshioka; Michiko Nagasako; Hironori Otomune; Keiichi Kitajo; Ichiro Miyai

doi:10.1109/SMC.2018.00015

Comparison of EEG Synchrony Measures for Post-Stroke Neurorehabilitation

Teiji Kawano, Noriaki Hattori, Megumi Hatakenaka, Yutaka Uno, Hajime Yagura, Hiroaki Fujimoto, Tomomi Yoshioka, Michiko Nagasako, Hironori Otomune, Keiichi Kitajo, Ichiro Miyai

Department of Rehabilitation

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Scopus citations

Abstract

In post-stroke neurorehabilitation, the Functional Independence Measure (FIM) is a standard clinical scale used to assess patient's activities of daily living. Recently, we reported a new electroencephalography-based biomarker (the phase synchrony index) that correlates with this scale. For a more comprehensive evaluation, we compared three synchrony measures: phase synchrony index, phase lag index, and imaginary part of coherency. These synchrony measures showed a significant correlation with FIM motor subscores in the same frequency bands, but in different ways. These differences may be partly attributed to the susceptibility to the spurious synchrony by volume conduction effects and/or presence of the ceiling effect of synchrony measures. Our results suggest that we should select an appropriate synchrony measure as a biomarker for stroke recovery depending on the brain network of interest.

Original language	English
Title of host publication	Proceedings - 2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	35-38
Number of pages	4
ISBN (Electronic)	9781538666500
DOIs	https://doi.org/10.1109/SMC.2018.00015
State	Published - 2018/07/02
Event	2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018 - Miyazaki, Japan Duration: 2018/10/07 → 2018/10/10

Publication series

Name	Proceedings - 2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018

Conference

Conference	2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018
Country/Territory	Japan
City	Miyazaki
Period	2018/10/07 → 2018/10/10

Keywords

Functional Independence Measure
electroencephalography
neurorehabilitation
stroke
synchrony

ASJC Scopus subject areas

Information Systems
Information Systems and Management
Health Informatics
Artificial Intelligence
Computer Networks and Communications
Human-Computer Interaction

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/SMC.2018.00015

Cite this

Kawano, T., Hattori, N., Hatakenaka, M., Uno, Y., Yagura, H., Fujimoto, H., Yoshioka, T., Nagasako, M., Otomune, H., Kitajo, K., & Miyai, I. (2018). Comparison of EEG Synchrony Measures for Post-Stroke Neurorehabilitation. In Proceedings - 2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018 (pp. 35-38). Article 8616010 (Proceedings - 2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SMC.2018.00015

Kawano, Teiji ; Hattori, Noriaki ; Hatakenaka, Megumi et al. / Comparison of EEG Synchrony Measures for Post-Stroke Neurorehabilitation. Proceedings - 2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 35-38 (Proceedings - 2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018).

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title = "Comparison of EEG Synchrony Measures for Post-Stroke Neurorehabilitation",

abstract = "In post-stroke neurorehabilitation, the Functional Independence Measure (FIM) is a standard clinical scale used to assess patient's activities of daily living. Recently, we reported a new electroencephalography-based biomarker (the phase synchrony index) that correlates with this scale. For a more comprehensive evaluation, we compared three synchrony measures: phase synchrony index, phase lag index, and imaginary part of coherency. These synchrony measures showed a significant correlation with FIM motor subscores in the same frequency bands, but in different ways. These differences may be partly attributed to the susceptibility to the spurious synchrony by volume conduction effects and/or presence of the ceiling effect of synchrony measures. Our results suggest that we should select an appropriate synchrony measure as a biomarker for stroke recovery depending on the brain network of interest.",

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author = "Teiji Kawano and Noriaki Hattori and Megumi Hatakenaka and Yutaka Uno and Hajime Yagura and Hiroaki Fujimoto and Tomomi Yoshioka and Michiko Nagasako and Hironori Otomune and Keiichi Kitajo and Ichiro Miyai",

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Kawano, T, Hattori, N, Hatakenaka, M, Uno, Y, Yagura, H, Fujimoto, H, Yoshioka, T, Nagasako, M, Otomune, H, Kitajo, K & Miyai, I 2018, Comparison of EEG Synchrony Measures for Post-Stroke Neurorehabilitation. in Proceedings - 2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018., 8616010, Proceedings - 2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018, Institute of Electrical and Electronics Engineers Inc., pp. 35-38, 2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018, Miyazaki, Japan, 2018/10/07. https://doi.org/10.1109/SMC.2018.00015

Comparison of EEG Synchrony Measures for Post-Stroke Neurorehabilitation. / Kawano, Teiji; Hattori, Noriaki; Hatakenaka, Megumi et al.
Proceedings - 2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018. Institute of Electrical and Electronics Engineers Inc., 2018. p. 35-38 8616010 (Proceedings - 2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Kawano, Teiji

AU - Hattori, Noriaki

AU - Hatakenaka, Megumi

AU - Uno, Yutaka

AU - Yagura, Hajime

AU - Fujimoto, Hiroaki

AU - Yoshioka, Tomomi

AU - Nagasako, Michiko

AU - Otomune, Hironori

AU - Kitajo, Keiichi

AU - Miyai, Ichiro

PY - 2018/7/2

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N2 - In post-stroke neurorehabilitation, the Functional Independence Measure (FIM) is a standard clinical scale used to assess patient's activities of daily living. Recently, we reported a new electroencephalography-based biomarker (the phase synchrony index) that correlates with this scale. For a more comprehensive evaluation, we compared three synchrony measures: phase synchrony index, phase lag index, and imaginary part of coherency. These synchrony measures showed a significant correlation with FIM motor subscores in the same frequency bands, but in different ways. These differences may be partly attributed to the susceptibility to the spurious synchrony by volume conduction effects and/or presence of the ceiling effect of synchrony measures. Our results suggest that we should select an appropriate synchrony measure as a biomarker for stroke recovery depending on the brain network of interest.

AB - In post-stroke neurorehabilitation, the Functional Independence Measure (FIM) is a standard clinical scale used to assess patient's activities of daily living. Recently, we reported a new electroencephalography-based biomarker (the phase synchrony index) that correlates with this scale. For a more comprehensive evaluation, we compared three synchrony measures: phase synchrony index, phase lag index, and imaginary part of coherency. These synchrony measures showed a significant correlation with FIM motor subscores in the same frequency bands, but in different ways. These differences may be partly attributed to the susceptibility to the spurious synchrony by volume conduction effects and/or presence of the ceiling effect of synchrony measures. Our results suggest that we should select an appropriate synchrony measure as a biomarker for stroke recovery depending on the brain network of interest.

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KW - synchrony

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M3 - 会議への寄与

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T3 - Proceedings - 2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018

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BT - Proceedings - 2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018

Y2 - 7 October 2018 through 10 October 2018

ER -

Kawano T, Hattori N, Hatakenaka M, Uno Y, Yagura H, Fujimoto H et al. Comparison of EEG Synchrony Measures for Post-Stroke Neurorehabilitation. In Proceedings - 2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018. Institute of Electrical and Electronics Engineers Inc. 2018. p. 35-38. 8616010. (Proceedings - 2018 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2018). doi: 10.1109/SMC.2018.00015

Comparison of EEG Synchrony Measures for Post-Stroke Neurorehabilitation

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

UN SDGs

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