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| Presentation | 2009-01-19 17:00 The significance of a nonlinear transformation and a role of local neurons in the Drosophila primary olfactory center Ryota Satoh (Univ. of Tokyo.), Masafumi Oizumi (Univ. of Tokyo/Research Fellw of the Japan), Hokto Kazama (Harvard Medical School), Masato Okada (Univ. of Tokyo/Research Fellw of the Japan)  NC2008-94 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Recent investigations have shown that, in the Drosophila olfactory system, olfactory receptor neurons (ORNs) are comparatively narrowly tuned to odors while second-order projection neurons (PNs) are broadly tuned. This results from a nonlinear transformation between ORN and PN responses. Since PNs will be able to use their dynamic range more efficiently than ORNs, this transformation is considered to be helpful for the decoder to discriminate between odors. However, there are no quantitative arguments for this role. In this study, we modeled a neural circuit of the Drosophila primary olfactory center, and investigated quantitatively this role based on infomax principle. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Drosophila / Olfactory system / McCulloch-Pitts model / mutual information / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 383, NC2008-94, pp. 73-78, Jan. 2009. | |
| Paper # | NC2008-94 | |
| Date of Issue | 2009-01-12 (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 | NC2008-94 |
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| Conference Information | |
| Committee | NC |
| Conference Date | 2009-01-19 - 2009-01-20 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hokkaido Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Neural Dynamics, etc. |
| Paper Information | |
| Registration To | NC |
| Conference Code | 2009-01-NC |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | The significance of a nonlinear transformation and a role of local neurons in the Drosophila primary olfactory center |
| Sub Title (in English) | |
| Keyword(1) | Drosophila |
| Keyword(2) | Olfactory system |
| Keyword(3) | McCulloch-Pitts model |
| Keyword(4) | mutual information |
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| 1st Author's Name | Ryota Satoh |
| 1st Author's Affiliation | the University of Tokyo (Univ. of Tokyo.) |
| 2nd Author's Name | Masafumi Oizumi |
| 2nd Author's Affiliation | the University of Tokyo/Research Fellw of the Japan (Univ. of Tokyo/Research Fellw of the Japan) |
| 3rd Author's Name | Hokto Kazama |
| 3rd Author's Affiliation | Harvard Medical School (Harvard Medical School) |
| 4th Author's Name | Masato Okada |
| 4th Author's Affiliation | the University of Tokyo/Research Fellw of the Japan (Univ. of Tokyo/Research Fellw of the Japan) |
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| Speaker | Author-1 |
| Date Time | 2009-01-19 17:00:00 |
| Presentation Time | 25 minutes |
| Registration for | NC |
| Paper # | NC2008-94 |
| Volume (vol) | vol.108 |
| Number (no) | no.383 |
| Page | pp.73-78 |
| #Pages | 6 |
| Date of Issue | 2009-01-12 (NC) |
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