Reducing the Calibration Time in Somatosensory BCI by Using Tactile ERD
Objective: We propose a tactile-induced-oscillation approach to reduce the calibration time in somatosensory brain-computer interfaces (BCI). Methods: Based on the similarity between tactile induced event-related desynchronization (ERD) and imagined sensation induced ERD activation, we extensively e...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Transactions on Neural Systems and Rehabilitation Engineering |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9810279/ |
| _version_ | 1827927071646547968 |
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| author | Lin Yao Ning Jiang Natalie Mrachacz-Kersting Xiangyang Zhu Dario Farina Yueming Wang |
| author_facet | Lin Yao Ning Jiang Natalie Mrachacz-Kersting Xiangyang Zhu Dario Farina Yueming Wang |
| author_sort | Lin Yao |
| collection | DOAJ |
| description | Objective: We propose a tactile-induced-oscillation approach to reduce the calibration time in somatosensory brain-computer interfaces (BCI). Methods: Based on the similarity between tactile induced event-related desynchronization (ERD) and imagined sensation induced ERD activation, we extensively evaluated BCI performance when using a conventional and a novel calibration strategy. In the conventional calibration, the tactile imagined data was used, while in the sensory calibration model sensory stimulation data was used. Subjects were required to sense the tactile stimulus when real tactile was applied to the left or right wrist and were required to perform imagined sensation tasks in the somatosensory BCI paradigm. Results: The sensory calibration led to a significantly better performance than the conventional calibration when tested on the same imagined sensation dataset (<inline-formula> <tex-math notation="LaTeX">$\text{F}_{(1,19)}$ </tex-math></inline-formula>=10.89, P=0.0038), with an average 5.1% improvement in accuracy. Moreover, the sensory calibration was 39.3% faster in reaching a performance level of above 70% accuracy. Conclusion: The proposed approach of using tactile ERD from the sensory cortex provides an effective way of reducing the calibration time in a somatosensory BCI system. Significance: The tactile stimulation would be specifically useful before BCI usage, avoiding excessive fatigue when the mental task is difficult to perform. The tactile ERD approach may find BCI applications for patients or users with preserved afferent pathways. |
| first_indexed | 2024-03-13T05:46:57Z |
| format | Article |
| id | doaj.art-7698d7b6438f4d08a59adb62d2952aa7 |
| institution | Directory Open Access Journal |
| issn | 1558-0210 |
| language | English |
| last_indexed | 2024-03-13T05:46:57Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Transactions on Neural Systems and Rehabilitation Engineering |
| spelling | doaj.art-7698d7b6438f4d08a59adb62d2952aa72023-06-13T20:08:54ZengIEEEIEEE Transactions on Neural Systems and Rehabilitation Engineering1558-02102022-01-01301870187610.1109/TNSRE.2022.31844029810279Reducing the Calibration Time in Somatosensory BCI by Using Tactile ERDLin Yao0https://orcid.org/0000-0003-2065-7280Ning Jiang1Natalie Mrachacz-Kersting2https://orcid.org/0000-0003-2814-5351Xiangyang Zhu3https://orcid.org/0000-0003-4914-6636Dario Farina4https://orcid.org/0000-0002-7883-2697Yueming Wang5https://orcid.org/0000-0001-7742-0722Department of Neurobiology, Affiliated Mental Health Center and Hangzhou Seventh People’s Hospital, Zhejiang University School of Medicine, MOE Frontiers Science Center for Brain and Brain-Machine Integration, Zhejiang University, Hangzhou, ChinaNational Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, ChinaInstitute for Sport and Sport Science, Albert Ludwig University of Freiburg, Freiburg im Breisgau, GermanyState Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai, ChinaDepartment of Bioengineering, Imperial College London, London, U.KQiushi Academy for Advanced Studies (QAAS) and the College of Computer Science, Zhejiang University, Hangzhou, ChinaObjective: We propose a tactile-induced-oscillation approach to reduce the calibration time in somatosensory brain-computer interfaces (BCI). Methods: Based on the similarity between tactile induced event-related desynchronization (ERD) and imagined sensation induced ERD activation, we extensively evaluated BCI performance when using a conventional and a novel calibration strategy. In the conventional calibration, the tactile imagined data was used, while in the sensory calibration model sensory stimulation data was used. Subjects were required to sense the tactile stimulus when real tactile was applied to the left or right wrist and were required to perform imagined sensation tasks in the somatosensory BCI paradigm. Results: The sensory calibration led to a significantly better performance than the conventional calibration when tested on the same imagined sensation dataset (<inline-formula> <tex-math notation="LaTeX">$\text{F}_{(1,19)}$ </tex-math></inline-formula>=10.89, P=0.0038), with an average 5.1% improvement in accuracy. Moreover, the sensory calibration was 39.3% faster in reaching a performance level of above 70% accuracy. Conclusion: The proposed approach of using tactile ERD from the sensory cortex provides an effective way of reducing the calibration time in a somatosensory BCI system. Significance: The tactile stimulation would be specifically useful before BCI usage, avoiding excessive fatigue when the mental task is difficult to perform. The tactile ERD approach may find BCI applications for patients or users with preserved afferent pathways.https://ieeexplore.ieee.org/document/9810279/Brain-computer interface (BCI)tactile event-related desynchronization (ERD)somatosensory BCIimagined sensation |
| spellingShingle | Lin Yao Ning Jiang Natalie Mrachacz-Kersting Xiangyang Zhu Dario Farina Yueming Wang Reducing the Calibration Time in Somatosensory BCI by Using Tactile ERD IEEE Transactions on Neural Systems and Rehabilitation Engineering Brain-computer interface (BCI) tactile event-related desynchronization (ERD) somatosensory BCI imagined sensation |
| title | Reducing the Calibration Time in Somatosensory BCI by Using Tactile ERD |
| title_full | Reducing the Calibration Time in Somatosensory BCI by Using Tactile ERD |
| title_fullStr | Reducing the Calibration Time in Somatosensory BCI by Using Tactile ERD |
| title_full_unstemmed | Reducing the Calibration Time in Somatosensory BCI by Using Tactile ERD |
| title_short | Reducing the Calibration Time in Somatosensory BCI by Using Tactile ERD |
| title_sort | reducing the calibration time in somatosensory bci by using tactile erd |
| topic | Brain-computer interface (BCI) tactile event-related desynchronization (ERD) somatosensory BCI imagined sensation |
| url | https://ieeexplore.ieee.org/document/9810279/ |
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