A Practical Application for Quantitative Brain Fatigue Evaluation Based on Machine Learning and Ballistocardiogram
Brain fatigue is often associated with inattention, mental retardation, prolonged reaction time, decreased work efficiency, increased error rate, and other problems. In addition to the accumulation of fatigue, brain fatigue has become one of the important factors that harm our mental health. Therefo...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Healthcare |
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| Online Access: | https://www.mdpi.com/2227-9032/9/11/1453 |
| _version_ | 1797510140994256896 |
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| author | Yanting Xu Zhengyuan Yang Gang Li Jinghong Tian Yonghua Jiang |
| author_facet | Yanting Xu Zhengyuan Yang Gang Li Jinghong Tian Yonghua Jiang |
| author_sort | Yanting Xu |
| collection | DOAJ |
| description | Brain fatigue is often associated with inattention, mental retardation, prolonged reaction time, decreased work efficiency, increased error rate, and other problems. In addition to the accumulation of fatigue, brain fatigue has become one of the important factors that harm our mental health. Therefore, it is of great significance to explore the practical and accurate brain fatigue detection method, especially for quantitative brain fatigue evaluation. In this study, a biomedical signal of ballistocardiogram (BCG), which does not require direct contact with human body, was collected by optical fiber sensor cushion during the whole process of cognitive tasks for 20 subjects. The heart rate variability (HRV) was calculated based on BCG signal. Machine learning classification model was built based on random forest to quantify and recognize brain fatigue. The results showed that: Firstly, the heart rate obtained from BCG signal was consistent with the result displayed by the medical equipment, and the absolute difference was less than 3 beats/min, and the mean error is 1.30 ± 0.81 beats/min; secondly, the random forest classifier for brain fatigue evaluation based on HRV can effectively identify the state of brain fatigue, with an accuracy rate of 96.54%; finally, the correlation between HRV and the accuracy was analyzed, and the correlation coefficient was as high as 0.98, which indicates that the accuracy can be used as an indicator for quantitative brain fatigue evaluation during the whole task. The results suggested that the brain fatigue quantification evaluation method based on the optical fiber sensor cushion and machine learning can carry out real-time brain fatigue detection on the human brain without disturbance, reduce the risk of human accidents in human–machine interaction systems, and improve mental health among the office and driving personnel. |
| first_indexed | 2024-03-10T05:27:24Z |
| format | Article |
| id | doaj.art-3950faf2138849519ee1c7ff19e1401b |
| institution | Directory Open Access Journal |
| issn | 2227-9032 |
| language | English |
| last_indexed | 2024-03-10T05:27:24Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Healthcare |
| spelling | doaj.art-3950faf2138849519ee1c7ff19e1401b2023-11-22T23:31:06ZengMDPI AGHealthcare2227-90322021-10-01911145310.3390/healthcare9111453A Practical Application for Quantitative Brain Fatigue Evaluation Based on Machine Learning and BallistocardiogramYanting Xu0Zhengyuan Yang1Gang Li2Jinghong Tian3Yonghua Jiang4Key Laboratory of Intelligent Operation and Maintenance Technology and Equipment for Urban Rail Transit of Zhejiang Province, Jinhua 321004, ChinaKey Laboratory of Intelligent Operation and Maintenance Technology and Equipment for Urban Rail Transit of Zhejiang Province, Jinhua 321004, ChinaKey Laboratory of Intelligent Operation and Maintenance Technology and Equipment for Urban Rail Transit of Zhejiang Province, Jinhua 321004, ChinaKey Laboratory of Intelligent Operation and Maintenance Technology and Equipment for Urban Rail Transit of Zhejiang Province, Jinhua 321004, ChinaKey Laboratory of Intelligent Operation and Maintenance Technology and Equipment for Urban Rail Transit of Zhejiang Province, Jinhua 321004, ChinaBrain fatigue is often associated with inattention, mental retardation, prolonged reaction time, decreased work efficiency, increased error rate, and other problems. In addition to the accumulation of fatigue, brain fatigue has become one of the important factors that harm our mental health. Therefore, it is of great significance to explore the practical and accurate brain fatigue detection method, especially for quantitative brain fatigue evaluation. In this study, a biomedical signal of ballistocardiogram (BCG), which does not require direct contact with human body, was collected by optical fiber sensor cushion during the whole process of cognitive tasks for 20 subjects. The heart rate variability (HRV) was calculated based on BCG signal. Machine learning classification model was built based on random forest to quantify and recognize brain fatigue. The results showed that: Firstly, the heart rate obtained from BCG signal was consistent with the result displayed by the medical equipment, and the absolute difference was less than 3 beats/min, and the mean error is 1.30 ± 0.81 beats/min; secondly, the random forest classifier for brain fatigue evaluation based on HRV can effectively identify the state of brain fatigue, with an accuracy rate of 96.54%; finally, the correlation between HRV and the accuracy was analyzed, and the correlation coefficient was as high as 0.98, which indicates that the accuracy can be used as an indicator for quantitative brain fatigue evaluation during the whole task. The results suggested that the brain fatigue quantification evaluation method based on the optical fiber sensor cushion and machine learning can carry out real-time brain fatigue detection on the human brain without disturbance, reduce the risk of human accidents in human–machine interaction systems, and improve mental health among the office and driving personnel.https://www.mdpi.com/2227-9032/9/11/1453brain fatiguemental healthballistocardiogram (BCG)machine learningfiber-optic sensorheart rate variability (HRV) |
| spellingShingle | Yanting Xu Zhengyuan Yang Gang Li Jinghong Tian Yonghua Jiang A Practical Application for Quantitative Brain Fatigue Evaluation Based on Machine Learning and Ballistocardiogram Healthcare brain fatigue mental health ballistocardiogram (BCG) machine learning fiber-optic sensor heart rate variability (HRV) |
| title | A Practical Application for Quantitative Brain Fatigue Evaluation Based on Machine Learning and Ballistocardiogram |
| title_full | A Practical Application for Quantitative Brain Fatigue Evaluation Based on Machine Learning and Ballistocardiogram |
| title_fullStr | A Practical Application for Quantitative Brain Fatigue Evaluation Based on Machine Learning and Ballistocardiogram |
| title_full_unstemmed | A Practical Application for Quantitative Brain Fatigue Evaluation Based on Machine Learning and Ballistocardiogram |
| title_short | A Practical Application for Quantitative Brain Fatigue Evaluation Based on Machine Learning and Ballistocardiogram |
| title_sort | practical application for quantitative brain fatigue evaluation based on machine learning and ballistocardiogram |
| topic | brain fatigue mental health ballistocardiogram (BCG) machine learning fiber-optic sensor heart rate variability (HRV) |
| url | https://www.mdpi.com/2227-9032/9/11/1453 |
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