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| Presentation | 2014-09-26 10:20 Evaluation of information rate in responses of retinal photoreceptor layer considering miniature eye movements Keiichiro Inagaki (Chubu Univ.), Takayuki Kannon (RIKEN), Yoshimi Kamiyama (Aichi Pref. Univ.), Akito Ishihara (Chukyo Univ.), Shiro Usui (Toyohashi Univ. of Tech.)  HIP2014-54 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Fixation, holding one’s eyes on an object, plays a key role in the perception of visual scenes. The miniature fluctuation, microsaccades, drifts and tremors, are involved in the fixation even the eyes seem still. Although the functional roles of the miniature eye movements have gradually been uncovered, the detail of those still remains mysteries. Here, we constructed a large scale visual system model to investigate contribution of the miniature eye movement on the visual functions ―especially focusing on the processing in the retinal photoreceptors. The model consists of brainstem (eye movement control), eye optics, and photoreceptors; and those models are constructed based on the known anatomical and physiological evidence. We simulated fixation of the several scenes using the constructed model and evaluated photoreceptor responses by information rate. We confirmed that the information rate for the photoreceptor responses was increased with the miniature eye movement, while it was decreased without miniature eye movement. We also confirmed that increasing of the information rate resulted from increasing the responses for the edges of objects by the miniature eye movement. These results suggest that visual information is already enhanced at the retina level by miniature eye movement. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | microsaccade / drift / eye optics， / cone cell / cone mosaic / model simulation / / | |
| Reference Info. | IEICE Tech. Rep., vol. 114, no. 226, HIP2014-54, pp. 61-65, Sept. 2014. | |
| Paper # | HIP2014-54 | |
| Date of Issue | 2014-09-18 (HIP) | |
| 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 | HIP2014-54 |
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| Conference Information | |
| Committee | HIP |
| Conference Date | 2014-09-25 - 2014-09-26 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nara Prefectural New Public Hall |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | HIP |
| Conference Code | 2014-09-HIP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Evaluation of information rate in responses of retinal photoreceptor layer considering miniature eye movements |
| Sub Title (in English) | |
| Keyword(1) | microsaccade |
| Keyword(2) | drift |
| Keyword(3) | eye optics， |
| Keyword(4) | cone cell |
| Keyword(5) | cone mosaic |
| Keyword(6) | model simulation |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Keiichiro Inagaki |
| 1st Author's Affiliation | Chubu University (Chubu Univ.) |
| 2nd Author's Name | Takayuki Kannon |
| 2nd Author's Affiliation | RIKEN (RIKEN) |
| 3rd Author's Name | Yoshimi Kamiyama |
| 3rd Author's Affiliation | Aichi Prefectural University (Aichi Pref. Univ.) |
| 4th Author's Name | Akito Ishihara |
| 4th Author's Affiliation | Chukyo University (Chukyo Univ.) |
| 5th Author's Name | Shiro Usui |
| 5th Author's Affiliation | Toyohashi University of Technology (Toyohashi Univ. of Tech.) |
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| Speaker | Author-1 |
| Date Time | 2014-09-26 10:20:00 |
| Presentation Time | 25 minutes |
| Registration for | HIP |
| Paper # | HIP2014-54 |
| Volume (vol) | vol.114 |
| Number (no) | no.226 |
| Page | pp.61-65 |
| #Pages | 5 |
| Date of Issue | 2014-09-18 (HIP) |
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