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Paper Abstract and Keywords
Presentation 2011-03-08 10:15
Estimation of arm force direction by fNIRS signal during isometric task
Taiki Ishii, Yasuyuki Muto, Shuichi Matsuzaki, Yasuhiro Wada (NUT) NC2010-161
Abstract (in Japanese) (See Japanese page) 
(in English) In this study, the directions of the force exerted by the arm during isometric muscle contraction were estimated by using the 24-channel functional near infrared spectroscopy (fNIRS) signal on cortical hemodynamics. In an experiment, subjects were required to perform isometric arm movements in four directions (Front: F, Right: R, Back: B and Left: L from the subjects) with the right arm while keeping a certain joint angle during the task period. Spatial and temporal feature selection were performed on the fNIRS signal to ascertain the representation of the force directions. The estimation results suggest that the FB-RL classification accuracy was approximately 70-90\%. Further, NIRS spatial parametric mapping (NIRS-SPM) analysis results suggest relation to the spatial features of the fNIRS signal which contributed for the estimation. These results indicate the possibility that statistically-significant areas give effective features for estimation the direction on the fNIRS signal.
Keyword (in Japanese) (See Japanese page) 
(in English) fNIRS / Isometric / Force direction / SVM / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 461, NC2010-161, pp. 199-204, March 2011.
Paper # NC2010-161 
Date of Issue 2011-02-28 (NC) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
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 NC MBE  
Conference Date 2011-03-07 - 2011-03-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Tamagawa University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To NC 
Conference Code 2011-03-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Estimation of arm force direction by fNIRS signal during isometric task 
Sub Title (in English)  
Keyword(1) fNIRS  
Keyword(2) Isometric  
Keyword(3) Force direction  
Keyword(4) SVM  
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1st Author's Name Taiki Ishii  
1st Author's Affiliation Nagaoka University of Technology (NUT)
2nd Author's Name Yasuyuki Muto  
2nd Author's Affiliation Nagaoka University of Technology (NUT)
3rd Author's Name Shuichi Matsuzaki  
3rd Author's Affiliation Nagaoka University of Technology (NUT)
4th Author's Name Yasuhiro Wada  
4th Author's Affiliation Nagaoka University of Technology (NUT)
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Speaker Author-1 
Date Time 2011-03-08 10:15:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # NC2010-161 
Volume (vol) vol.110 
Number (no) no.461 
Page pp.199-204 
#Pages
Date of Issue 2011-02-28 (NC) 


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