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Paper Abstract and Keywords
Presentation 2015-03-17 10:00
Three-dimensional Fingertip Trajectory Decoded from Electrocorticogram of Human Cerebral Cortex
Yasuhiko Nakanishi (Tokyo Tech), Takufumi Yanagisawa (Osaka Univ), Duk Shin, Hiroyuki Kambara, Natsue Yoshimura (Tokyo Tech), Ryohei Fukuma (ATR), Haruhiko Kishima, Masayuki Hirata (Osaka Univ), Yasuharu Koike (Tokyo Tech) MBE2014-151 NC2014-102
Abstract (in Japanese) (See Japanese page) 
(in English) Brain-machine interface technology has a possibility to be applied to practical neuroprosthesis for disabled persons. For example, the trajectory decoding of the human elbow and wrist has been already achieved in various studies. However, the accurate prediction for trajectory of finger motion is still a challengeable problem. We subdurally implanted 90 electrocorticogram (ECoG) electrodes on the human sensorimotor cortex and predicted three-dimensional trajectories of the thumb, index and middle fingers base on the ECoG signals using a sparse linear regression. A participant put her right hand on a table palm-down, tapping the table with one of her thumb, index and middle fingers as tasks. The average of Pearson’s correlation coefficient and normalized root-mean-square error between the predicted and actual trajectories were 0.83-0.90 and 0.24-0.48, respectively.
Keyword (in Japanese) (See Japanese page) 
(in English) Brain-machine interface / Electrocorticography (ECoG) / Trajectory prediction / Sensorimotor cortex / Linear regression / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 515, NC2014-102, pp. 195-198, March 2015.
Paper # NC2014-102 
Date of Issue 2015-03-09 (MBE, 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)
Download PDF MBE2014-151 NC2014-102

Conference Information
Committee NC MBE  
Conference Date 2015-03-16 - 2015-03-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Tamagawa University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ME, etc 
Paper Information
Registration To NC 
Conference Code 2015-03-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Three-dimensional Fingertip Trajectory Decoded from Electrocorticogram of Human Cerebral Cortex 
Sub Title (in English)  
Keyword(1) Brain-machine interface  
Keyword(2) Electrocorticography (ECoG)  
Keyword(3) Trajectory prediction  
Keyword(4) Sensorimotor cortex  
Keyword(5) Linear regression  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Yasuhiko Nakanishi  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
2nd Author's Name Takufumi Yanagisawa  
2nd Author's Affiliation Osaka University (Osaka Univ)
3rd Author's Name Duk Shin  
3rd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
4th Author's Name Hiroyuki Kambara  
4th Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
5th Author's Name Natsue Yoshimura  
5th Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
6th Author's Name Ryohei Fukuma  
6th Author's Affiliation Advanced Telecommunications Research Institute International (ATR)
7th Author's Name Haruhiko Kishima  
7th Author's Affiliation Osaka University (Osaka Univ)
8th Author's Name Masayuki Hirata  
8th Author's Affiliation Osaka University (Osaka Univ)
9th Author's Name Yasuharu Koike  
9th Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
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Speaker Author-1 
Date Time 2015-03-17 10:00:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # MBE2014-151, NC2014-102 
Volume (vol) vol.114 
Number (no) no.514(MBE), no.515(NC) 
Page pp.195-198 
#Pages 4 
Date of Issue 2015-03-09 (MBE, NC) 

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