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| Presentation | 2013-03-13 15:35 Computational study on adaptive mechanism of motion perception in visual cortex Yusuke Kanda, Osamu Watanabe (Muroran Inst. of Tech.)  NC2012-153 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Visual motion information is processed in the dorsal stream that begins with V1 and goes to MT/MST in the brain. In the dorsal stream, although V1 neurons are selective only for spatio-temporal frequency, MT neurons have a selectivity for speed and direction of visual motion. Simoncelli, et al.(1988) proposed a hierarchical model that explains the motion detection from V1 to MT. In this model, the motion detection in area MT is achieved by gathering the responses of V1 neurons with a static weight. However, Hayashi, et al.(2010) showed the psychophysical properties of slit motion perception and suggested that an adaptive weighting mechanism was necessary to interpret the results. In this study we constructed a hierarchical model for the motion pathway that was equivalent to Simoncelli's and carried out a simulation that was equivalent to Hayashi's psychological experiment. The result showed that the motion detection property similar to the psychological experiment could not be obtained only with the static weighting. In addition, we proposed a model for dynamic weighting based on the frequency included in V1 responses and investigated the motion detection property. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Motion perception / Area MT / Hierarchical model / Slit motion / Adaptive mechanism / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 480, NC2012-153, pp. 113-118, March 2013. | |
| Paper # | NC2012-153 | |
| Date of Issue | 2013-03-06 (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 | NC2012-153 |
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| Conference Information | |
| Committee | MBE NC |
| Conference Date | 2013-03-13 - 2013-03-15 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tamagawa University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | NC |
| Conference Code | 2013-03-MBE-NC |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Computational study on adaptive mechanism of motion perception in visual cortex |
| Sub Title (in English) | |
| Keyword(1) | Motion perception |
| Keyword(2) | Area MT |
| Keyword(3) | Hierarchical model |
| Keyword(4) | Slit motion |
| Keyword(5) | Adaptive mechanism |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yusuke Kanda |
| 1st Author's Affiliation | Muroran Institute of Technology (Muroran Inst. of Tech.) |
| 2nd Author's Name | Osamu Watanabe |
| 2nd Author's Affiliation | Muroran Institute of Technology (Muroran Inst. of Tech.) |
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| Speaker | Author-1 |
| Date Time | 2013-03-13 15:35:00 |
| Presentation Time | 25 minutes |
| Registration for | NC |
| Paper # | NC2012-153 |
| Volume (vol) | vol.112 |
| Number (no) | no.480 |
| Page | pp.113-118 |
| #Pages | 6 |
| Date of Issue | 2013-03-06 (NC) |
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