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| Presentation | 2011-03-07 13:45 Ca2+ imaging on horizontal signal propagation in the mouse primary visual cortex Yoshinori Shimada, Taishi Maki, Takuya Shiki, Tetsuya Yagi (Osaka Univ.)  MBE2010-104 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We studied spatio-temporal properties of horizontal signal propagation in mouse primary visual cortex, V1, using Ca2+ imaging. The excitatory signals induced by electrical stimulation spread in a restricted area. The excitatory signal, however, spread horizontally over the entire V1 area, when the GABAergic inhibitory synapses were blocked by administration of BCC. The velocity of the spread was 1.11 ± 0.129 cm/s（N=3）, which is much slower than the propagation of action potential along the axon. These observations suggested that pyramidal cells were widely coupled each other via short and long range excitatory horizontal connections across the functional columns and dynamical interactions between excitatory and inhibitory synapses plays a crucial role in formation of functional columns. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | visual cortex / calcium imaging / neural network / excitatory synapse / inhibitory synapse / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 460, MBE2010-104, pp. 7-12, March 2011. | |
| Paper # | MBE2010-104 | |
| Date of Issue | 2011-02-28 (MBE) | |
| 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 | MBE2010-104 |
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| Conference Information | |
| Committee | NC MBE |
| Conference Date | 2011-03-07 - 2011-03-09 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tamagawa University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | MBE |
| Conference Code | 2011-03-NC-MBE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Ca2+ imaging on horizontal signal propagation in the mouse primary visual cortex |
| Sub Title (in English) | |
| Keyword(1) | visual cortex |
| Keyword(2) | calcium imaging |
| Keyword(3) | neural network |
| Keyword(4) | excitatory synapse |
| Keyword(5) | inhibitory synapse |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yoshinori Shimada |
| 1st Author's Affiliation | Osaka University (Osaka Univ.) |
| 2nd Author's Name | Taishi Maki |
| 2nd Author's Affiliation | Osaka University (Osaka Univ.) |
| 3rd Author's Name | Takuya Shiki |
| 3rd Author's Affiliation | Osaka University (Osaka Univ.) |
| 4th Author's Name | Tetsuya Yagi |
| 4th Author's Affiliation | Osaka University (Osaka Univ.) |
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| Speaker | Author-1 |
| Date Time | 2011-03-07 13:45:00 |
| Presentation Time | 25 minutes |
| Registration for | MBE |
| Paper # | MBE2010-104 |
| Volume (vol) | vol.110 |
| Number (no) | no.460 |
| Page | pp.7-12 |
| #Pages | 6 |
| Date of Issue | 2011-02-28 (MBE) |
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