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Paper Abstract and Keywords
Presentation 2007-06-14 11:20
Optical imaging of dendritic propagating potential in heterosynaptic associative LTP of rat hippocampal CA1 pyramidal neurons
Makoto Yoneyama, Yasuhiro Fukushima, Minoru Tsukada (Tamagawa Univ.) NC2007-12
Abstract (in Japanese) (See Japanese page) 
(in English) In contrast to Hebb type learning rule, in spatiotemporal learning rule (STLR) proposed by Tsukada et al. (1996), synaptic strength is modified by both spatial coincidence and the temporal summation of synaptic inputs without back propagating action potential (BPAP). When a pair of strong and weak stimulation is applied simultaneously in hippocampal CA1, heterosynaptic associative LTP, one of the physiological evidence of STLR, is induced in both stimulation sites. Our previous study showed that heterosynaptic associative LTP could be induced under decreased-BPAPs condition using low TTX application. However, the mechanism of LTP was unclear. In this study, we recorded dynamic responses in both strong and weak input site under low TTX condition by using voltage-sensitive dye. From this result, it is clear that EPSP produced by strong stimulation propagates along the dendrite and affects the synaptic strength of weak input site.
Keyword (in Japanese) (See Japanese page) 
(in English) Hippocampus / Optical Imaging / Spatiotemporal learning rule / heterosynaptic associative LTP / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 92, NC2007-12, pp. 23-27, June 2007.
Paper # NC2007-12 
Date of Issue 2007-06-07 (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 NC2007-12

Conference Information
Committee NC  
Conference Date 2007-06-14 - 2007-06-15 
Place (in Japanese) (See Japanese page) 
Place (in English) OIST Seaside House 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To NC 
Conference Code 2007-06-NC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Optical imaging of dendritic propagating potential in heterosynaptic associative LTP of rat hippocampal CA1 pyramidal neurons 
Sub Title (in English)  
Keyword(1) Hippocampus  
Keyword(2) Optical Imaging  
Keyword(3) Spatiotemporal learning rule  
Keyword(4) heterosynaptic associative LTP  
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1st Author's Name Makoto Yoneyama  
1st Author's Affiliation Tamagawa University (Tamagawa Univ.)
2nd Author's Name Yasuhiro Fukushima  
2nd Author's Affiliation Research Institute Tamagawa University (Tamagawa Univ.)
3rd Author's Name Minoru Tsukada  
3rd Author's Affiliation Research Institute Tamagawa University (Tamagawa Univ.)
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Speaker Author-1 
Date Time 2007-06-14 11:20:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # NC2007-12 
Volume (vol) vol.107 
Number (no) no.92 
Page pp.23-27 
#Pages 5 
Date of Issue 2007-06-07 (NC) 

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