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Paper Abstract and Keywords
Presentation 2014-03-07 14:55
Improvement of Yes/No Communication Method for ALS Patients -- Problems and Their Solutions Through Case Studies --
Kuniaki Ozawa, Junko Sengoku, Masayoshi Naito (TWCU), Isamu Ogata, Tsuneo Kanazawa (Excel of Mechatronix) WIT2013-74
Abstract (in Japanese) (See Japanese page) 
(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) 
(in English) ALS / communication / Yes/No answers / near- infrared light / cerebral blood volume / discriminant analysis / support vector machine / calibration  
Reference Info. IEICE Tech. Rep., vol. 113, no. 481, WIT2013-74, pp. 43-48, March 2014.
Paper # WIT2013-74 
Date of Issue 2014-02-28 (WIT) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee WIT  
Conference Date 2014-03-07 - 2014-03-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Kasuga Campus, Tsukuba University of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Well-being Information Technology, etc. 
Paper Information
Registration To WIT 
Conference Code 2014-03-WIT 
Language Japanese 
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 
Sub Title (in English) Problems and Their Solutions Through Case Studies 
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 Tokyo Woman's Christian University (TWCU)
2nd Author's Name Junko Sengoku  
2nd Author's Affiliation Tokyo Woman's Christian University (TWCU)
3rd Author's Name Masayoshi Naito  
3rd Author's Affiliation Tokyo Woman's Christian University (TWCU)
4th Author's Name Isamu Ogata  
4th Author's Affiliation Excel of Mechatronix Co. (Excel of Mechatronix)
5th Author's Name Tsuneo Kanazawa  
5th Author's Affiliation Excel of Mechatronix Co. (Excel of Mechatronix)
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Speaker Author-1 
Date Time 2014-03-07 14:55:00 
Presentation Time 25 minutes 
Registration for WIT 
Paper # WIT2013-74 
Volume (vol) vol.113 
Number (no) no.481 
Page pp.43-48 
#Pages 6 
Date of Issue 2014-02-28 (WIT) 

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