| Presentation | 2014-03-07 Improvement of Yes/No Communication Method for ALS Patients : Problems and Their Solutions Through Case Studies Kuniaki OZAWA, Junko SENGOKU, Masayoshi NAITO, Isamu OGATA, Tsuneo KANAZAWA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | An Yes/No communication method has been studied for ALS(Amyotrophic Lateral Sclerosis) patients with no movement of their bodies. The method uses cerebral blood volume changes measured with near-infrared light. It has been used in the product and the research on its improvement is under progress. Its research version (RV) is deferent from the product version (PV) in using variables such as the vibration number of blood volume change and that of heart rate with the classification algorithm of SVM (Support Vector Machine). We have compared RV with PV by an experiment for 18 subjects (11 healthy ones and 7 ALS patients) for the combination of three tasks. The result has shown that RV has higher accuracy rate by about 10% than PV with 5% significant level by one combination of the three tasks for Yes/No. Also techniques of calibration such as the analysis period optimization of blood volume waves are mentioned through analysis of two case studies. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | ALS / communication / Yes/No answers / near infrared light / cerebral blood volume / discriminant analysis / support vector machine / calibration |
| Paper # | WIT2013-74 |
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| Conference Information | |
| Committee | WIT |
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| Conference Date | 2014/2/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Well-being Information Technology(WIT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improvement of Yes/No Communication Method for ALS Patients : Problems and Their Solutions Through Case Studies |
| Sub Title (in English) | |
| Keyword(1) | ALS |
| Keyword(2) | communication |
| Keyword(3) | Yes/No answers |
| Keyword(4) | near infrared light |
| Keyword(5) | cerebral blood volume |
| Keyword(6) | discriminant analysis |
| Keyword(7) | support vector machine |
| Keyword(8) | calibration |
| 1st Author's Name | Kuniaki OZAWA |
| 1st Author's Affiliation | Division of Mathematical Sciences, Tokyo Woman's Christian University() |
| 2nd Author's Name | Junko SENGOKU |
| 2nd Author's Affiliation | Division of Mathematical Sciences, Tokyo Woman's Christian University |
| 3rd Author's Name | Masayoshi NAITO |
| 3rd Author's Affiliation | Division of Mathematical Sciences, Tokyo Woman's Christian University |
| 4th Author's Name | Isamu OGATA |
| 4th Author's Affiliation | Excel of Mechatronix, Co. |
| 5th Author's Name | Tsuneo KANAZAWA |
| 5th Author's Affiliation | Excel of Mechatronix, Co. |
| Date | 2014-03-07 |
| Paper # | WIT2013-74 |
| Volume (vol) | vol.113 |
| Number (no) | 481 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |