Paper Abstract and Keywords |
Presentation |
2015-06-24 14:20
A theoretical study of binocular rivalry in Drosophila
-- Stable structure analysis of a visual system -- Shun Nakamoto, Yoshinori Suzuki (Tokyo Tech.), Takako Morimoto, Hiroyoshi Miyakawa (Tokyo Univ of Pharmacy and Life Sciences), Toru Aonishi (Tokyo Tech.) NC2015-2 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Tang et al. reported that there is a possibility of existence of the binocular rivalry in Drosophila. In this paper, under the hypothesis that the binocular rivalry in Drosophila is realized by a circuit of Lobula plate tangential cells (LPTCs) known as motion detectors, we explore the mechanism of the binocular rivalry by using a mathematical model of LPTCs circuit. Firstly, we constructed a simple circuit model in which electrically coupled cells were unified to a single cell, and all cells were described by the McCulloch-Pitts neuron model. We analytically confirmed that when giving both forward and backward translation stimuli, there are multiple stable states containing two states corresponding to responses to clockwise and counterclockwise rotation stimuli. Next we constructed a detailed model that consists of the conductance-based neuron model. We numerically confirmed that when giving forward translation stimuli, two firing cells, which separately exist in right and left hemispheres and have a preferred direction opposite to each other, were alternately excited/inhibited depending on noise fluctuations. There results suggest that dynamical activities of LPTCs circuit might involve in the binocular rivalry. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Vision / Drosophila / LPTCs / Binocular rivalry / Model / / / |
Reference Info. |
IEICE Tech. Rep., vol. 115, no. 111, NC2015-2, pp. 41-46, June 2015. |
Paper # |
NC2015-2 |
Date of Issue |
2015-06-17 (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 |
NC2015-2 |
|