Paper Abstract and Keywords |
Presentation |
2017-12-16 14:55
Neural coding of object's shape in electrolocation of weakly electic fish Shun Okuno (UEC), Kazuhisa Fujita (NIT, Tsuyama College/UEC), Yoshiki Kashimori (UEC) NC2017-47 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Weakly electric fish generate an electric field around their fish body. An object nearby fish elicits a modulation of electric field. The fish can know object’s features such as lateral distance, size, and shape by analyzing the modulation in their brain. This behavior is called electrolocation. Although the neural system of the fish has been established experimentally, it is not yet clear how these object features are encoded by the neural system of the fish. In the present study, we focus on the neural encoding of object’s shape. We develop a model for calculating electric fields modulated by objects with different shapes, on the basis of the finite-element method. Using the model, we show that the difference in the shape of an equilateral triangle and a square object appears in the temporal variations of the maximum amplitude of electric images elicited by rotations of these objects. We also develop a neural model of electrosensory system that consists of the models of electroreceptors and hindbrain neurons. We show that shape information of these objects are encoded in to the slopes of the temporal courses of receptor firing, contrasted by hindbrain neurons. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Electrolocation / Finite-element method / Objet's shape / Neural model / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 117, no. 361, NC2017-47, pp. 41-46, Dec. 2017. |
Paper # |
NC2017-47 |
Date of Issue |
2017-12-09 (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 |
NC2017-47 |
Conference Information |
Committee |
MBE NC |
Conference Date |
2017-12-16 - 2017-12-16 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Nagoya University |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
ME, general |
Paper Information |
Registration To |
NC |
Conference Code |
2017-12-MBE-NC |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Neural coding of object's shape in electrolocation of weakly electic fish |
Sub Title (in English) |
|
Keyword(1) |
Electrolocation |
Keyword(2) |
Finite-element method |
Keyword(3) |
Objet's shape |
Keyword(4) |
Neural model |
Keyword(5) |
|
Keyword(6) |
|
Keyword(7) |
|
Keyword(8) |
|
1st Author's Name |
Shun Okuno |
1st Author's Affiliation |
The University of Electro-Communications (UEC) |
2nd Author's Name |
Kazuhisa Fujita |
2nd Author's Affiliation |
National Institute of Technology, Tsuyama College/The University of Electro-Communications (NIT, Tsuyama College/UEC) |
3rd Author's Name |
Yoshiki Kashimori |
3rd Author's Affiliation |
The University of Electro-Communications (UEC) |
4th Author's Name |
|
4th Author's Affiliation |
() |
5th Author's Name |
|
5th Author's Affiliation |
() |
6th Author's Name |
|
6th Author's Affiliation |
() |
7th Author's Name |
|
7th Author's Affiliation |
() |
8th Author's Name |
|
8th Author's Affiliation |
() |
9th Author's Name |
|
9th Author's Affiliation |
() |
10th Author's Name |
|
10th Author's Affiliation |
() |
11th Author's Name |
|
11th Author's Affiliation |
() |
12th Author's Name |
|
12th Author's Affiliation |
() |
13th Author's Name |
|
13th Author's Affiliation |
() |
14th Author's Name |
|
14th Author's Affiliation |
() |
15th Author's Name |
|
15th Author's Affiliation |
() |
16th Author's Name |
|
16th Author's Affiliation |
() |
17th Author's Name |
|
17th Author's Affiliation |
() |
18th Author's Name |
|
18th Author's Affiliation |
() |
19th Author's Name |
|
19th Author's Affiliation |
() |
20th Author's Name |
|
20th Author's Affiliation |
() |
Speaker |
Author-1 |
Date Time |
2017-12-16 14:55:00 |
Presentation Time |
25 minutes |
Registration for |
NC |
Paper # |
NC2017-47 |
Volume (vol) |
vol.117 |
Number (no) |
no.361 |
Page |
pp.41-46 |
#Pages |
6 |
Date of Issue |
2017-12-09 (NC) |
|