Paper Abstract and Keywords |
Presentation |
2011-03-07 10:40
A mathematical model of a visual cortical network for the generation of plaid illusion Daichi Kurebayashi, Kousuke Kurebayashi, Masanobu Miyashita (Numazu Nat. Col. Tech.), Shigeru Tanaka (Univ. of Electro-Communications) NC2010-128 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
The plaid stimulation generates two distinct visual percepts: one is an independent motion of two gratings (component motion); and the other is a coherent motion of the gratings in the direction of a resultant velocity vector of the gratings (pattern motion). Also, pattern motion is predominantly perceived when the contrast of junctions of the gratings is high, whereas component motion is predominantly perceived when the contrast of the junctions is low. Thus far, the plaid illusion is generated in the higher visual cortex rather than the early visual cortex. In this study, to reveal the possible involvement of the primary visual cortex in the perceptual transition from component motion to pattern motion with the stimulus contrast, we performed simulation of a neural network composed of FitzHugh-Nagumo neuron models, whose retina-LGN-visual cortex afferent connections were determined by our self-organization model, and examined neuronal response properties to plaid stimuli. When the intracortical interaction is strong, neuronal activities in response to component motion were larger than those in response to pattern motion for low contrast conditions, and neuronal activities in response to pattern motion were predominantly larger than those in response to component motion with contrast-dependent reduction for high contrast conditions. On the other hand, when the intracortical interaction was weak, both types of neuronal activities monotonically increased from the same level with contrast elevation, and the component-pattern transition in neuronal activity was not observed. These results indicate that the component-pattern transition is induced by the regulation of neuronal activities by the intracortical interaction. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
primary visual cortex / direction selectivity / simple cell / Gestalt Illusion / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 110, no. 461, NC2010-128, pp. 7-12, March 2011. |
Paper # |
NC2010-128 |
Date of Issue |
2011-02-28 (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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NC2010-128 |
Conference Information |
Committee |
NC MBE |
Conference Date |
2011-03-07 - 2011-03-09 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tamagawa University |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
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Paper Information |
Registration To |
NC |
Conference Code |
2011-03-NC-MBE |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A mathematical model of a visual cortical network for the generation of plaid illusion |
Sub Title (in English) |
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Keyword(1) |
primary visual cortex |
Keyword(2) |
direction selectivity |
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simple cell |
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Gestalt Illusion |
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1st Author's Name |
Daichi Kurebayashi |
1st Author's Affiliation |
Numazu National College of Technology (Numazu Nat. Col. Tech.) |
2nd Author's Name |
Kousuke Kurebayashi |
2nd Author's Affiliation |
Numazu National College of Technology (Numazu Nat. Col. Tech.) |
3rd Author's Name |
Masanobu Miyashita |
3rd Author's Affiliation |
Numazu National College of Technology (Numazu Nat. Col. Tech.) |
4th Author's Name |
Shigeru Tanaka |
4th Author's Affiliation |
The University of Electro-Communications (Univ. of Electro-Communications) |
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Speaker |
Author-1 |
Date Time |
2011-03-07 10:40:00 |
Presentation Time |
25 minutes |
Registration for |
NC |
Paper # |
NC2010-128 |
Volume (vol) |
vol.110 |
Number (no) |
no.461 |
Page |
pp.7-12 |
#Pages |
6 |
Date of Issue |
2011-02-28 (NC) |