EEG microstate features according to performance on a mental arithmetic task

In this study, we hypothesized that task performance could be evaluated applying EEG microstate to mental arithmetic task. This pilot study also aimed at evaluating the efficacy of microstates as novel features to discriminate task performance. Thirty-six subjects were divided into good and poor per...

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Bibliographic Details
Published in:Scientific reports 2021-01, Vol.11 (1), p.343-343, Article 343
Main Authors: Kim, Kyungwon, Duc, Nguyen Thanh, Choi, Min, Lee, Boreom
Format: Article
Language:English
Subjects:
631/1647/245
631/378/2649
Adult
Algorithms
Brain - physiology
Brain Mapping
Classification
Clustering
Cognition & reasoning
Cognitive ability
EEG
Electroencephalography
Female
Humanities and Social Sciences
Humans
Male
Mathematics
Memory
Mental task performance
multidisciplinary
Pilot Projects
Science
Science (multidisciplinary)
Signal Processing, Computer-Assisted
Topography
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Summary:In this study, we hypothesized that task performance could be evaluated applying EEG microstate to mental arithmetic task. This pilot study also aimed at evaluating the efficacy of microstates as novel features to discriminate task performance. Thirty-six subjects were divided into good and poor performers, depending on how well they performed the task. Microstate features were derived from EEG recordings during resting and task states. In the good performers, there was a decrease in type C and an increase in type D features during the task compared to the resting state. Mean duration and occurrence decreased and increased, respectively. In the poor performers, occurrence of type D feature, mean duration and occurrence showed greater changes. We investigated whether microstate features were suitable for task performance classification and eleven features including four archetypes were selected by recursive feature elimination (RFE). The model that implemented them showed the highest classification performance for differentiating between groups. Our pilot findings showed that the highest mean Area Under Curve (AUC) was 0.831. This study is the first to apply EEG microstate features to specific cognitive tasks in healthy subjects, suggesting that EEG microstate features can reflect task achievement.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-020-79423-7