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Paper Abstract and Keywords
Presentation 2007-10-19 10:20
A Real-Time Neuronal Spike Sorting System using complex ICA for Multi-site Multi-unit Recording Data
Yasushi Shiraishi, Norihiro Katayama, Tetsuya Takahashi, Osamu Kikuchi, Akihiro Karashima, Mitsuyuki Nakao (Tohoku Univ.) NC2007-47
Abstract (in Japanese) (See Japanese page) 
(in English) Multi-site multi-unit recording method using multi-channel electrodes have been widely used for brain-machine interface system. Independent component analysis (ICA) is useful for sorting neuronal spikes recorded by this method because this analysis can separate neuronal spikes even if the spikes are overlapped. However the sufficient result would not be obtained if only this analysis was simply applied to the experimental data. We have proposed an efficient spike sorting method combined with continuous wavelet transform and complex-valued ICA. In this study, we show that our method has a better efficiency for sorting noisy data than the conventional method. In addition, we implement this method in a digital signal processor system. This system can process neuronal spike sorting within 2-milli-seconds in real-time.
Keyword (in Japanese) (See Japanese page) 
(in English) Multiunit recording / Spike sorting / Wavelet Transform / Independent Component Analysis / DSP / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 263, NC2007-47, pp. 75-80, Oct. 2007.
Paper # NC2007-47 
Date of Issue 2007-10-11 (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 NC2007-47

Conference Information
Committee NC  
Conference Date 2007-10-18 - 2007-10-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Technology and Application of Brain Interface, General 
Paper Information
Registration To NC 
Conference Code 2007-10-NC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Real-Time Neuronal Spike Sorting System using complex ICA for Multi-site Multi-unit Recording Data 
Sub Title (in English)  
Keyword(1) Multiunit recording  
Keyword(2) Spike sorting  
Keyword(3) Wavelet Transform  
Keyword(4) Independent Component Analysis  
Keyword(5) DSP  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Yasushi Shiraishi  
1st Author's Affiliation Graduate School of Information Sciences, Tohoku University (Tohoku Univ.)
2nd Author's Name Norihiro Katayama  
2nd Author's Affiliation Graduate School of Information Sciences, Tohoku University (Tohoku Univ.)
3rd Author's Name Tetsuya Takahashi  
3rd Author's Affiliation Graduate School of Information Sciences, Tohoku University (Tohoku Univ.)
4th Author's Name Osamu Kikuchi  
4th Author's Affiliation Graduate School of Information Sciences, Tohoku University (Tohoku Univ.)
5th Author's Name Akihiro Karashima  
5th Author's Affiliation Graduate School of Information Sciences, Tohoku University (Tohoku Univ.)
6th Author's Name Mitsuyuki Nakao  
6th Author's Affiliation Graduate School of Information Sciences, Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2007-10-19 10:20:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # NC2007-47 
Volume (vol) vol.107 
Number (no) no.263 
Page pp.75-80 
#Pages 6 
Date of Issue 2007-10-11 (NC) 

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