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Paper Abstract and Keywords
Presentation 2009-03-11 10:45
Mathematical analysis on dynamical behavior of a cylindrical cable induced by extracellular electrical field II
Hiromu Monai (Tokyo Inst. of Tech.), Toshiaki Omori, Masato Okada (Univ. of Tokyo), Masashi Inoue, Hiroyoshi Miyakawa (Tokyo Univ. of Pharmacy and Life Sci.), Toru Aonishi (Tokyo Inst. of Tech.) NC2008-117
Abstract (in Japanese) (See Japanese page) 
(in English) In both physiological and artificial conditions, the dendrites of neurons can be exposed to electrical fields.
Recent experimental studies suggested that the membrane resistivity of the distal apical dendrites of cortical and hippocampal pyramidal neurons may be significantly lower than that of the proximal dendrites and the soma.
To understand the behavior of dendrites in time varying extracellular electrical fields, we obtained analytical solutions of cable equations for finite cylindrical cables with and without a leak conductance attached to one end employing the Green's function method.
The solution of a cable with leak at one end for DC electrical fields shows reversal of polarization at the leaky end as has been shown previously employing the method of variable separation and Fourier expansion.
The solution of a cable with leak at one end for AC electrical fields shows that the leaky end shows frequency preference in response amplitude.
Our results suggest that a passive dendrite with low resistivity at the distal end would show frequency preference in response to sinusoidal extracellular local field potentials.
The Green's function obtained in our study can be used to calculate response for any forms of extracellular electrical fields.
Keyword (in Japanese) (See Japanese page) 
(in English) cable equation / extracellular electrical field / frequency preference / hippocampal CA1 pyramidal neuron / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 480, NC2008-117, pp. 81-86, March 2009.
Paper # NC2008-117 
Date of Issue 2009-03-04 (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)
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Conference Information
Committee NC MBE  
Conference Date 2009-03-11 - 2009-03-13 
Place (in Japanese) (See Japanese page) 
Place (in English) Tamagawa Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To NC 
Conference Code 2009-03-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Mathematical analysis on dynamical behavior of a cylindrical cable induced by extracellular electrical field II 
Sub Title (in English)  
Keyword(1) cable equation  
Keyword(2) extracellular electrical field  
Keyword(3) frequency preference  
Keyword(4) hippocampal CA1 pyramidal neuron  
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1st Author's Name Hiromu Monai  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
2nd Author's Name Toshiaki Omori  
2nd Author's Affiliation Universty of Tokyo (Univ. of Tokyo)
3rd Author's Name Masato Okada  
3rd Author's Affiliation Universty of Tokyo (Univ. of Tokyo)
4th Author's Name Masashi Inoue  
4th Author's Affiliation Tokyo University of Pharmacy and Life Science (Tokyo Univ. of Pharmacy and Life Sci.)
5th Author's Name Hiroyoshi Miyakawa  
5th Author's Affiliation Tokyo University of Pharmacy and Life Science (Tokyo Univ. of Pharmacy and Life Sci.)
6th Author's Name Toru Aonishi  
6th Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
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Speaker Author-1 
Date Time 2009-03-11 10:45:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # NC2008-117 
Volume (vol) vol.108 
Number (no) no.480 
Page pp.81-86 
#Pages 6 
Date of Issue 2009-03-04 (NC) 

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