| Presentation | 2021-01-22 On decoding left-right movement intention of single arm from EEG Mitsuhiko Inaba, Kazushi Ikeda, Motoaki Kawanabe, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Brain-machine interface (BMI) is a technology that supports people by manipulating external devices using only changes in brain activity. In non-invasive BMI research, mental states that are inconsistent with intended behaviors such as mental calculation are used for determining manipulation commands in order to achieve high accuracy. This dissociation between mental states and intended behaviors is an obstacle in practical BMI applications. In the present study, we conducted an experiment to investigate the difference in brain activity when imagining moving right (dominant) arm to the left or right towards more natural BMIs. By nested cross-validation for selecting features and optimizing parameters, we showed that the average classification accuracy of 6 subjects was 62%, and thus we can significantly discriminate left-right movement imagination of the same arm. Furthermore, we investigated the results by using SHAP values and time-frequency maps to discuss their possible physiological interpretations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | BMI / EEG / motor imagery / movement decoding of the same arm / SHAP value |
| Paper # | NC2020-35 |
| Date of Issue | 2021-01-14 (NC) |
| Conference Information | |
| Committee | NC / NLP |
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| Conference Date | 2021/1/21(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | NC，NLP |
| Chair | Kazuyuki Samejima(Tamagawa Univ) / Kiyohisa Natsume(Kyushu Inst. of Tech.) |
| Vice Chair | Rieko Osu(Waseda Univ.) / Takuji Kosaka(Chukyo Univ.) |
| Secretary | Rieko Osu(NTT) / Takuji Kosaka(ATR) |
| Assistant | Ken Takiyama(TUAT) / Nobuhiko Wagatsuma(Toho Univ.) / Toshikaza Samura(Yamaguchi Univ.) / Hideyuki Kato(Oita Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Neurocomputing / Technical Committee on Nonlinear Problems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | On decoding left-right movement intention of single arm from EEG |
| Sub Title (in English) | |
| Keyword(1) | BMI |
| Keyword(2) | EEG |
| Keyword(3) | motor imagery |
| Keyword(4) | movement decoding of the same arm |
| Keyword(5) | SHAP value |
| 1st Author's Name | Mitsuhiko Inaba |
| 1st Author's Affiliation | Nara Institute of Science and Technology(NAIST) |
| 2nd Author's Name | Kazushi Ikeda |
| 2nd Author's Affiliation | Nara Institute of Science and Technology(NAIST) |
| 3rd Author's Name | Motoaki Kawanabe |
| 3rd Author's Affiliation | Advanced Telecommunications Research Institute International(ATR) |
| Date | 2021-01-22 |
| Paper # | NC2020-35 |
| Volume (vol) | vol.120 |
| Number (no) | NC-331 |
| Page | pp.pp.18-23(NC), |
| #Pages | 6 |
| Date of Issue | 2021-01-14 (NC) |