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Presentation 2009-11-12 13:55
A Study on Estimating Words Read Silently from Human Electrocorticogram
Eri Imatani, Shigeyuki Ikeda, Tomohiro Shibata (Nara Inst. of Sci and Tech.), Naohiro Tsuyuguchi (Osaka City Univ.), Naoki Nakano (Kinki Univ.), Yoshinobu Hara (Nara Inst. of Sci and Tech.), Rieko Okada (Kinki Univ.), Kazushi Ikeda (Nara Inst. of Sci and Tech.), Amami Kato (Kinki Univ./JST) NC2009-55
Abstract (in Japanese) (See Japanese page) 
(in English) To estimate words read silently from human electrocorticogram which is ess invasive compared to electrophysiological methods, less noisy and renders higher spatial resolution compared to EEG, we conducted a silent reading task in which an epilepsy patient with ECoG electrodes was asked to read silently one of two words randomly presented on a monitor. SVM as employed to estimate the word read silently. We compared results out of five different types of input data with or without electrodes selection. As a result, maximum 74.5% of estimation performance, which is much higher than the chance level, was obtained. Furthermore, the location of the selected electrodes were at or close to the language-related cortical location revealed by the application of electrical stimulation.
Keyword (in Japanese) (See Japanese page) 
(in English) ECoG / BMI / Silent reading / SVM / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 280, NC2009-55, pp. 29-34, Nov. 2009.
Paper # NC2009-55 
Date of Issue 2009-11-05 (NC) 
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 NC MBE  
Conference Date 2009-11-12 - 2009-11-13 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) BCI/BMI and related topics, NC, ME, etc. 
Paper Information
Registration To NC 
Conference Code 2009-11-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Estimating Words Read Silently from Human Electrocorticogram 
Sub Title (in English)  
Keyword(1) ECoG  
Keyword(2) BMI  
Keyword(3) Silent reading  
Keyword(4) SVM  
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1st Author's Name Eri Imatani  
1st Author's Affiliation Nara Institute of Science and Technology (Nara Inst. of Sci and Tech.)
2nd Author's Name Shigeyuki Ikeda  
2nd Author's Affiliation Nara Institute of Science and Technology (Nara Inst. of Sci and Tech.)
3rd Author's Name Tomohiro Shibata  
3rd Author's Affiliation Nara Institute of Science and Technology (Nara Inst. of Sci and Tech.)
4th Author's Name Naohiro Tsuyuguchi  
4th Author's Affiliation Osaka City University (Osaka City Univ.)
5th Author's Name Naoki Nakano  
5th Author's Affiliation Kinki University (Kinki Univ.)
6th Author's Name Yoshinobu Hara  
6th Author's Affiliation Nara Institute of Science and Technology (Nara Inst. of Sci and Tech.)
7th Author's Name Rieko Okada  
7th Author's Affiliation Kinki University (Kinki Univ.)
8th Author's Name Kazushi Ikeda  
8th Author's Affiliation Nara Institute of Science and Technology (Nara Inst. of Sci and Tech.)
9th Author's Name Amami Kato  
9th Author's Affiliation Kinki University/CREST,JST (Kinki Univ./JST)
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Speaker Author-1 
Date Time 2009-11-12 13:55:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # NC2009-55 
Volume (vol) vol.109 
Number (no) no.280 
Page pp.29-34 
#Pages
Date of Issue 2009-11-05 (NC) 


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