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Paper Abstract and Keywords
Presentation 2018-09-06 11:45
A Study on Modeling of Peripheral Nerves in Nerve Response Analysis
Ryota Hayami, Takahiro Ito, Jose Gomez-Tamez, Wasaka Toshiaki, Akimasa Hirata (NITech) EST2018-45 Link to ES Tech. Rep. Archives: EST2018-45
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, there has been a growing interest in selective stimulation of various small fibers in the skin for pain research. Intra-epidermal Electric Stimulation (IES) has been proposed for selective stimulation by injecting a weak current through a concentric bipolar needle electrode. However, there are few studies on stimulation thresholds considered of safety. By constructing a computational model of peripheral nerve included pain sensation, it becomes possible to optimize electrodes and input current when IES is performed, and selective stimulation improvement can be expected. In this study, we examined effect of electrical parameters of the conventional nerve model on activation threshold of peripheral myelinated nerve (Aδ fiber). The potential distribution by IES is computed by electromagnetic field analysis, and a threshold value was searched using a neural model. Although it was possible to approximate computation results to experimental results of pain threshold by modifying the electrical parameters,computation results are compared with experimental results of pain threshold and showed a pain threshold prediction error of 90% with respect to experimental measurements. As a result, Modeling including pain sensation is difficult by only modifying the electrical parameters of the conventional myelinated nerve model, it seems necessary to consider the possibility that multiple nerves are reacting.
Keyword (in Japanese) (See Japanese page) 
(in English) Peripheral nerve / Epidermal electrical stimulation / Pain threshold / / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 209, EST2018-45, pp. 17-21, Sept. 2018.
Paper # EST2018-45 
Date of Issue 2018-08-30 (EST) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 EST2018-45 Link to ES Tech. Rep. Archives: EST2018-45

Conference Information
Committee EST  
Conference Date 2018-09-06 - 2018-09-07 
Place (in Japanese) (See Japanese page) 
Place (in English) Kumejima-machi, Okinawa 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Simulation techniques, etc. 
Paper Information
Registration To EST 
Conference Code 2018-09-EST 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Modeling of Peripheral Nerves in Nerve Response Analysis 
Sub Title (in English)  
Keyword(1) Peripheral nerve  
Keyword(2) Epidermal electrical stimulation  
Keyword(3) Pain threshold  
1st Author's Name Ryota Hayami  
1st Author's Affiliation Nagoya Insititute of Technology (NITech)
2nd Author's Name Takahiro Ito  
2nd Author's Affiliation Nagoya Insititute of Technology (NITech)
3rd Author's Name Jose Gomez-Tamez  
3rd Author's Affiliation Nagoya Insititute of Technology (NITech)
4th Author's Name Wasaka Toshiaki  
4th Author's Affiliation Nagoya Insititute of Technology (NITech)
5th Author's Name Akimasa Hirata  
5th Author's Affiliation Nagoya Insititute of Technology (NITech)
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Date Time 2018-09-06 11:45:00 
Presentation Time 25 
Registration for EST 
Paper # IEICE-EST2018-45 
Volume (vol) IEICE-118 
Number (no) no.209 
Page pp.17-21 
#Pages IEICE-5 
Date of Issue IEICE-EST-2018-08-30 

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