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Paper Abstract and Keywords
Presentation 2011-10-20 14:00
Axonal projection area of excitatory and inhibitory neurons producing stable directional spike propagation in a recurrent network
Toshikazu Samura, Hatsuo Hayashi (Kyutech) NC2011-65
Abstract (in Japanese) (See Japanese page) 
(in English) It has been demonstrated that spike propagation emerges in a locally connected recurrent network, which
consists of excitatory and inhibitory neurons, when synaptic weights between excitatory neurons are changed through
spike-timing dependent synaptic plasticity. Moreover, it has been reported that radial spike propagation becomes directional
one depending on the shape of axonal projection areas of inhibitory interneurons. In this report, we changed the aspect ratio of
the axonal projection areas of excitatory neurons and/or inhibitory interneurons, and obtained the ratio of the inhibitory
strengths to spike propagation in vertical and horizontal directions in order to evaluate how easy to produce directional spike
propagation. We suggest that thin axonal projection areas of excitatory and inhibitory neurons, which are long in the vertical
and horizontal directions respectively, facilitate an emergence of directional spike propagation in the horizontal direction.
Finally, we discuss another factor to facilitate the emergence.
Keyword (in Japanese) (See Japanese page) 
(in English) Recurrent Network / Spike Propagation / Axonal Projection Area / Hippocampal CA3 / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 241, NC2011-65, pp. 119-124, Oct. 2011.
Paper # NC2011-65 
Date of Issue 2011-10-12 (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 NC2011-65

Conference Information
Committee NC  
Conference Date 2011-10-19 - 2011-10-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Ohashi Campus, Kyushu Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Implementation of neurocomputing, modeling for human science, and general 
Paper Information
Registration To NC 
Conference Code 2011-10-NC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Axonal projection area of excitatory and inhibitory neurons producing stable directional spike propagation in a recurrent network 
Sub Title (in English)  
Keyword(1) Recurrent Network  
Keyword(2) Spike Propagation  
Keyword(3) Axonal Projection Area  
Keyword(4) Hippocampal CA3  
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Keyword(6)  
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Keyword(8)  
1st Author's Name Toshikazu Samura  
1st Author's Affiliation Kyushu Institute of Technology (Kyutech)
2nd Author's Name Hatsuo Hayashi  
2nd Author's Affiliation Kyushu Institute of Technology (Kyutech)
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Speaker Author-1 
Date Time 2011-10-20 14:00:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # NC2011-65 
Volume (vol) vol.111 
Number (no) no.241 
Page pp.119-124 
#Pages 6 
Date of Issue 2011-10-12 (NC) 

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