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Paper Abstract and Keywords
Presentation 2010-01-28 15:50
A CMOS circuit model accounting for the object motion sensitive response in vertebrate retinas
Hidetaka Yasuoka, Murat Saglam, Yuki Hayashida, Nobuki Murayama (Kumamoto Univ.) MBE2009-87
Abstract (in Japanese) (See Japanese page) 
(in English) Visual information processing in vertebrate animals starts in retinas. In recent electrophysiological studies, it has been demonstrated that the object motion segregated from the background motion that is due to, for example, fixational eye movement was computed, at least in part, by the retinal circuits. We have recently developed a numerical model that simulates this retinal computation at the neuronal level. In the present study, we made attempts, as the first step, to implement this model into a hardware CMOS transistor circuit with a one-dimensional photodiode array. Using discrete circuit components on breadboards, 20 cells for each of outer retinal neurons and 5 cells for each of wide-field amacrine cell and ganglion cell were constructed. In response to moving patterns of a striped image, the spatio-temporal response profiles of each neuron showed reasonable agreements with the numerical simulations in our model.
Keyword (in Japanese) (See Japanese page) 
(in English) Visual function / Vertebrate retina / neuronal level / Hardware model / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 406, MBE2009-87, pp. 55-59, Jan. 2010.
Paper # MBE2009-87 
Date of Issue 2010-01-21 (MBE) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
Copyright
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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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Conference Information
Committee MBE  
Conference Date 2010-01-28 - 2010-01-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Kumamoto Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ME in general 
Paper Information
Registration To MBE 
Conference Code 2010-01-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A CMOS circuit model accounting for the object motion sensitive response in vertebrate retinas 
Sub Title (in English)  
Keyword(1) Visual function  
Keyword(2) Vertebrate retina  
Keyword(3) neuronal level  
Keyword(4) Hardware model  
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1st Author's Name Hidetaka Yasuoka  
1st Author's Affiliation Kumamoto University (Kumamoto Univ.)
2nd Author's Name Murat Saglam  
2nd Author's Affiliation Kumamoto University (Kumamoto Univ.)
3rd Author's Name Yuki Hayashida  
3rd Author's Affiliation Kumamoto University (Kumamoto Univ.)
4th Author's Name Nobuki Murayama  
4th Author's Affiliation Kumamoto University (Kumamoto Univ.)
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Speaker
Date Time 2010-01-28 15:50:00 
Presentation Time 25 
Registration for MBE 
Paper # IEICE-MBE2009-87 
Volume (vol) IEICE-109 
Number (no) no.406 
Page pp.55-59 
#Pages IEICE-5 
Date of Issue IEICE-MBE-2010-01-21 


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