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KMID : 1144120230130030247
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Biomedical Engineering Letters
2023 Volume.13 No. 3 p.247 ~ p.272
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Current status and prospects of automatic sleep stages scoring: Review
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Maksym Gaiduk
Angel Serrano Alarcon
Xingguo Wang
Choi Eun-Seong
Qing Yuan
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Abstract
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The scoring of sleep stages is one of the essential tasks in sleep analysis. Since a manual procedure requires considerable human and financial resources, and incorporates some subjectivity, an automated approach could result in several advantages. There have been many developments in this area, and in order to provide a comprehensive overview, it is essential to review relevant recent works and summarise the characteristics of the approaches, which is the main aim of this article. To achieve it, we examined articles published between 2018 and 2022 that dealt with the automated scoring of sleep stages. In the final selection for in-depth analysis, 125 articles were included after reviewing a total of 515 publications. The results revealed that automatic scoring demonstrates good quality (with Cohen's kappa up to over 0.80 and accuracy up to over 90%) in analysing EEG/EEG?+?EOG?+?EMG signals. At the same time, it should be noted that there has been no breakthrough in the quality of results using these signals in recent years. Systems involving other signals that could potentially be acquired more conveniently for the user (e.g. respiratory, cardiac or movement signals) remain more challenging in the implementation with a high level of reliability but have considerable innovation capability. In general, automatic sleep stage scoring has excellent potential to assist medical professionals while providing an objective assessment.
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KEYWORD
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Automatic sleep assessment, Sleep scoring, Physiological signals, Sleep stages
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