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Published in: Brain Topography 4/2020

01-07-2020 | Electroencephalography | Original Paper

Reliability and Individual Specificity of EEG Microstate Characteristics

Authors: Jiayi Liu, Jing Xu, Guangyuan Zou, Yong He, Qihong Zou, Jia-Hong Gao

Published in: Brain Topography | Issue 4/2020

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Abstract

Electroencephalography (EEG) microstates (MSs) are defined as quasi-stable topographies that represent global coherent activation. Alternations in EEG MSs have been reported in numerous neuropsychiatric disorders. Transferring the results of these studies into clinical practice requires not only high reliability but also sufficient individual specificity. Nevertheless, whether the amount of data used in microstate analysis influences reliability and how much individual information is provided by EEG MSs are unclear. In the current study, we aimed to assess the within-subject consistency and between-subject differences in the characteristics of EEG MSs. Two sets of eyes-closed resting-state EEG recordings were collected from 54 young, healthy participants on two consecutive days. The Raven Advanced Progressive Matrices test was conducted to assess general fluid intelligence (gF). We obtained four MSs (labeled A, B, C and D) through EEG microstate analysis. EEG MS characteristics including traditional features (the global explained variances, mean durations, coverages, occurrences and transition probabilities), the Hurst exponents and temporal dynamic features (the autocorrelation functions and the partial autocorrelation functions) were calculated and evaluated. The data with a duration greater than 2 min showed moderate to high reliability and individual specificity. The mean duration and coverage of MS C were significantly correlated with the gF score. The dynamic features showed a higher identification accuracy and were more significantly correlated with gF than the traditional MS features. These findings reveal that EEG microstate characteristics are reliably unique in single subjects and possess abundant inter-individual variability.
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Literature
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Metadata
Title
Reliability and Individual Specificity of EEG Microstate Characteristics
Authors
Jiayi Liu
Jing Xu
Guangyuan Zou
Yong He
Qihong Zou
Jia-Hong Gao
Publication date
01-07-2020
Publisher
Springer US
Published in
Brain Topography / Issue 4/2020
Print ISSN: 0896-0267
Electronic ISSN: 1573-6792
DOI
https://doi.org/10.1007/s10548-020-00777-2

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