Using Mental Shadowing Tasks to Improve the Sound-Evoked Potential of EEG in the Design of an Auditory Brain–Computer Interface
This study proposed an auditory stimulation protocol based on Shadowing Tasks to improve the sound-evoked potential in an EEG and the efficiency of an auditory brain–computer interface system. We use stories as auditory stimulation to enhance users’ motivation and presented the sound stimuli via hea...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/2/856 |
| _version_ | 1797446709984362496 |
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| author | Koun-Tem Sun Kai-Lung Hsieh Shih-Yun Lee |
| author_facet | Koun-Tem Sun Kai-Lung Hsieh Shih-Yun Lee |
| author_sort | Koun-Tem Sun |
| collection | DOAJ |
| description | This study proposed an auditory stimulation protocol based on Shadowing Tasks to improve the sound-evoked potential in an EEG and the efficiency of an auditory brain–computer interface system. We use stories as auditory stimulation to enhance users’ motivation and presented the sound stimuli via headphones to enable the user to concentrate better on the keywords in the stories. The protocol presents target stimuli with an oddball P300 paradigm. To decline mental workload, we shift the usual Shadowing Tasks paradigm: Instead of loudly repeating the auditory target stimuli, we ask subjects to echo the target stimuli mentally as it occurs. Twenty-four healthy participants, not one of whom underwent a BCI use or training phase before the experimental procedure, ran twenty trials each. We analyzed the effect of the auditory stimulation based on the Shadowing Tasks theory with the performance of the auditory BCI system. We also evaluated the judgment effectiveness of the three ERPs components (N2P3, P300, and N200) from five chosen electrodes. The best average accuracy of post-analysis was 78.96%. Using component N2P3 to distinguish between target and non-target can improve the efficiency of the auditory BCI system and give it good practicality. We intend to persist in this study and involve the protocol in an aBCI-based home care system (HCS) for target patients to provide daily assistance. |
| first_indexed | 2024-03-09T13:44:29Z |
| format | Article |
| id | doaj.art-b0f86b5dc2b04520a1bb5b5d7c95d813 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T13:44:29Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-b0f86b5dc2b04520a1bb5b5d7c95d8132023-11-30T21:02:29ZengMDPI AGApplied Sciences2076-34172023-01-0113285610.3390/app13020856Using Mental Shadowing Tasks to Improve the Sound-Evoked Potential of EEG in the Design of an Auditory Brain–Computer InterfaceKoun-Tem Sun0Kai-Lung Hsieh1Shih-Yun Lee2Department of Information and Learning Technology, National University of Tainan, 33, Sec. 2, Shu-Lin St., Tainan 70005, TaiwanDepartment of Information and Learning Technology, National University of Tainan, 33, Sec. 2, Shu-Lin St., Tainan 70005, TaiwanDepartment of Information and Learning Technology, National University of Tainan, 33, Sec. 2, Shu-Lin St., Tainan 70005, TaiwanThis study proposed an auditory stimulation protocol based on Shadowing Tasks to improve the sound-evoked potential in an EEG and the efficiency of an auditory brain–computer interface system. We use stories as auditory stimulation to enhance users’ motivation and presented the sound stimuli via headphones to enable the user to concentrate better on the keywords in the stories. The protocol presents target stimuli with an oddball P300 paradigm. To decline mental workload, we shift the usual Shadowing Tasks paradigm: Instead of loudly repeating the auditory target stimuli, we ask subjects to echo the target stimuli mentally as it occurs. Twenty-four healthy participants, not one of whom underwent a BCI use or training phase before the experimental procedure, ran twenty trials each. We analyzed the effect of the auditory stimulation based on the Shadowing Tasks theory with the performance of the auditory BCI system. We also evaluated the judgment effectiveness of the three ERPs components (N2P3, P300, and N200) from five chosen electrodes. The best average accuracy of post-analysis was 78.96%. Using component N2P3 to distinguish between target and non-target can improve the efficiency of the auditory BCI system and give it good practicality. We intend to persist in this study and involve the protocol in an aBCI-based home care system (HCS) for target patients to provide daily assistance.https://www.mdpi.com/2076-3417/13/2/856EEGERPsBCIShadowing Tasks |
| spellingShingle | Koun-Tem Sun Kai-Lung Hsieh Shih-Yun Lee Using Mental Shadowing Tasks to Improve the Sound-Evoked Potential of EEG in the Design of an Auditory Brain–Computer Interface Applied Sciences EEG ERPs BCI Shadowing Tasks |
| title | Using Mental Shadowing Tasks to Improve the Sound-Evoked Potential of EEG in the Design of an Auditory Brain–Computer Interface |
| title_full | Using Mental Shadowing Tasks to Improve the Sound-Evoked Potential of EEG in the Design of an Auditory Brain–Computer Interface |
| title_fullStr | Using Mental Shadowing Tasks to Improve the Sound-Evoked Potential of EEG in the Design of an Auditory Brain–Computer Interface |
| title_full_unstemmed | Using Mental Shadowing Tasks to Improve the Sound-Evoked Potential of EEG in the Design of an Auditory Brain–Computer Interface |
| title_short | Using Mental Shadowing Tasks to Improve the Sound-Evoked Potential of EEG in the Design of an Auditory Brain–Computer Interface |
| title_sort | using mental shadowing tasks to improve the sound evoked potential of eeg in the design of an auditory brain computer interface |
| topic | EEG ERPs BCI Shadowing Tasks |
| url | https://www.mdpi.com/2076-3417/13/2/856 |
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