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| Presentation | 2009-07-13 14:00 Minimum Conditional Entropy Principle Inferred from Irregular Firing of in Vivo Cortical Neurons Yasuhiro Tsubo, Yoshikazu Isomura, Tomoki Fukai (RIKEN BSI)  NLP2009-20 NC2009-13 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Spike sequences recorded from cortical neurons in an awake animal are known to be highly irregular. It is crucial for elucidating the cognitive function in the brain to understand how the irregular spike sequences are caused by intrinsic properties of the neurons and/or input properties from surrounding neurons. To clarify this, we estimated the inter-spike interval (ISI) distributions from the spike sequences recorded from in vivo neurons in rat motor cortex during a self-paced forelimb movement task. We found that the ISIs obeyed long-tailed power-law distributions. This result is consistent with the hypothesis that the firing rate of in vivo cortical neuron varies largely over time and its distribution obeys a gamma distribution. The gamma distribution of firing rate infers a novel principle, minimum conditional entropy principle, that the input firing rate is designed in a way to maximize the neuronal reliability of the spike generating mechanism by minimizing the influence of translation noise. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Inter-spike interval / Power-law distribution / Irregular spike times / Conditional entropy / Mutual information / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 125, NC2009-13, pp. 33-35, July 2009. | |
| Paper # | NC2009-13 | |
| Date of Issue | 2009-07-06 (NLP, 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 | NLP2009-20 NC2009-13 |
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| Conference Information | |
| Committee | NC NLP |
| Conference Date | 2009-07-13 - 2009-07-14 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | NAIST |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | NC |
| Conference Code | 2009-07-NC-NLP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Minimum Conditional Entropy Principle Inferred from Irregular Firing of in Vivo Cortical Neurons |
| Sub Title (in English) | |
| Keyword(1) | Inter-spike interval |
| Keyword(2) | Power-law distribution |
| Keyword(3) | Irregular spike times |
| Keyword(4) | Conditional entropy |
| Keyword(5) | Mutual information |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yasuhiro Tsubo |
| 1st Author's Affiliation | RIKEN BSI (RIKEN BSI) |
| 2nd Author's Name | Yoshikazu Isomura |
| 2nd Author's Affiliation | RIKEN BSI (RIKEN BSI) |
| 3rd Author's Name | Tomoki Fukai |
| 3rd Author's Affiliation | RIKEN BSI (RIKEN BSI) |
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| Speaker | Author-1 |
| Date Time | 2009-07-13 14:00:00 |
| Presentation Time | 30 minutes |
| Registration for | NC |
| Paper # | NLP2009-20, NC2009-13 |
| Volume (vol) | vol.109 |
| Number (no) | no.124(NLP), no.125(NC) |
| Page | pp.33-35 |
| #Pages | 3 |
| Date of Issue | 2009-07-06 (NLP, NC) |
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