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Paper Abstract and Keywords
Presentation 2012-01-19 11:20
[Poster Presentation] M-sequences from neural loop circuits
Shinichi Tamura (NBL Technovator), Yoshi Nishitani (Osaka Univ.), Chie Hosokawa (AIST), Yuko Mizuno-Matsumoto (Univ. of Hyogo), Yen-Wei Chen (Ritsumeikan Univ.), Tomomitsu Miyoshi, Hajime Sawai (Osaka Univ.) MI2011-99
Abstract (in Japanese) (See Japanese page) 
(in English) In circuit theory it is well known that loop circuit with a feedback link generates a pseudo-random sequence including an M-sequence with maximum period length. On the other hand, it remains unclear how memory is stored in neural circuits of the human brain. We propose that M-sequence composes temporal independent basis functions in brain neural network for communication and memory storage. We have already shown its feasibility by computer simulations that show a loop circuit can be copied to another area by back-propagation leaning algorithm; this is a key function of brain intelligence, which includes functions such as memory, association, reasoning, and abstraction. We found M-sequence responses in the instantaneous firing rates from cultured neural networks of published data and our own data, which suggest the existence of loop circuits with a feedback link composed of 3 to 5 neuron cells. Analyzing the time sequence of spike intervals of cultured neural network with the “auto mutual-information function,” we also find evidence that suggests the existence of loop circuits with a feedback link composed of 3, 4 neurons.
Keyword (in Japanese) (See Japanese page) 
(in English) Biological neural networks / Communication in brain / M-sequence / Neural spike sequence / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 389, MI2011-99, pp. 121-126, Jan. 2012.
Paper # MI2011-99 
Date of Issue 2012-01-12 (MI) 
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 MI  
Conference Date 2012-01-19 - 2012-01-20 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MI 
Conference Code 2012-01-MI 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) M-sequences from neural loop circuits 
Sub Title (in English)  
Keyword(1) Biological neural networks  
Keyword(2) Communication in brain  
Keyword(3) M-sequence  
Keyword(4) Neural spike sequence  
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1st Author's Name Shinichi Tamura  
1st Author's Affiliation NBL Technovator Co., Ltd (NBL Technovator)
2nd Author's Name Yoshi Nishitani  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Chie Hosokawa  
3rd Author's Affiliation National Institute of Advanced Industrial Science and Technology (AIST)
4th Author's Name Yuko Mizuno-Matsumoto  
4th Author's Affiliation University of Hyogo (Univ. of Hyogo)
5th Author's Name Yen-Wei Chen  
5th Author's Affiliation Ritsukmeikan University (Ritsumeikan Univ.)
6th Author's Name Tomomitsu Miyoshi  
6th Author's Affiliation Osaka University (Osaka Univ.)
7th Author's Name Hajime Sawai  
7th Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2012-01-19 11:20:00 
Presentation Time 30 minutes 
Registration for MI 
Paper # MI2011-99 
Volume (vol) vol.111 
Number (no) no.389 
Page pp.121-126 
#Pages 6 
Date of Issue 2012-01-12 (MI) 

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