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Paper Abstract and Keywords
Presentation 2019-03-05 15:00
On the spatiotemporal information contained in spike responses of mouse retina ganglion cells
Yuki Kashiwagi, Koji Yamamoto, Tetsuya Yagi, Yuki Hayashida (Osaka Univ.) MBE2018-99
Abstract (in Japanese) (See Japanese page) 
(in English) Information in the visual scene projected on the retina is encoded into the digital-like electrical signal called “spike” by the ganglion cells located at the retinal output stage for being sent to the brain. Based on the spatiotemporal patterns of the spikes, our brain generates visual perception of the outside world image that changes from moment to moment. Previous psychophysical experiments on human subjects have shown that the subjects can distinguish two different images presented simultaneously for the duration of only 20 msec. This result implies that a certain amount of information available for the image discrimination is encoded into the spatio-temporal patterns of spikes by the retinal ganglion cells in response to such a short duration of the image presentation. However, it has not been revealed exactly what kind of spike firing is generated by the real mammalian retinal ganglion cell in response to the flash image presentation. In this study, therefore we made measurements of the spike outputs from the ganglion cells in isolated mouse retinal preparations by means of the extracellular re-cording, and investigated the subtypes of the responses to light stimuli and statistical properties of the inter-spike intervals in those responses. Based on the experimental results, we discussed the possibility that short trains of spikes generated by some of the ganglion cell subtypes might be capable of encoding the information of the flashed image.
Keyword (in Japanese) (See Japanese page) 
(in English) Retinal ganglion cell / flash image presentation / spike response duration / inter-spike interval / response reproducibility / mouse / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 469, MBE2018-99, pp. 65-70, March 2019.
Paper # MBE2018-99 
Date of Issue 2019-02-25 (MBE) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 MBE2018-99

Conference Information
Committee NC MBE  
Conference Date 2019-03-04 - 2019-03-06 
Place (in Japanese) (See Japanese page) 
Place (in English) University of Electro Communications 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MBE 
Conference Code 2019-03-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) On the spatiotemporal information contained in spike responses of mouse retina ganglion cells 
Sub Title (in English)  
Keyword(1) Retinal ganglion cell  
Keyword(2) flash image presentation  
Keyword(3) spike response duration  
Keyword(4) inter-spike interval  
Keyword(5) response reproducibility  
Keyword(6) mouse  
1st Author's Name Yuki Kashiwagi  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Koji Yamamoto  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Tetsuya Yagi  
3rd Author's Affiliation Osaka University (Osaka Univ.)
4th Author's Name Yuki Hayashida  
4th Author's Affiliation Osaka University (Osaka Univ.)
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Date Time 2019-03-05 15:00:00 
Presentation Time 25 
Registration for MBE 
Paper # IEICE-MBE2018-99 
Volume (vol) IEICE-118 
Number (no) no.469 
Page pp.65-70 
#Pages IEICE-6 
Date of Issue IEICE-MBE-2019-02-25 

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