| Presentation | 2003/6/20 Analysis of Synfire Chain with Mexican-Hat Connectivity Kosuke HAMAGUCHI, Masato OKADA, Michiko YAMANA, Kazuyuki AIHARA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | It has been suggested for decades that information is encoded not only the mean firing rate of one neuron but also on the synchrony of neural spikes among the neuron population. Synfire chain is a model of homogeneous propagation of neuronal activity in a feedforward neural network. This homogeneity of the connection enables us to solve the dynamics of the network easily, but a real brain has inhomogeneous connectivity with in the neural network. Therefore, we propose a network model with Mexican-Hat type connectivity between the layers. By using McCulloch-Pitts model, we derive order-parameter equations, which describes the Fourier 0-th mode and 2-th mode concerning the propagating neuronal activity in the feedforward neural network. We found that two non-trivial propagation mode, i.e., localized activity and uniform activity, are stable as well as the trivial solution of non-firing state. We also found the bi-stable phase where the localized activity and the uniform activity coexist. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Synfire Chain / Mexican-Hat / Fourier-0th Mode / 2nd Mode / Localized Activity |
| Paper # | NC2003-15 |
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| Committee | NC |
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| Conference Date | 2003/6/20(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Neurocomputing (NC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analysis of Synfire Chain with Mexican-Hat Connectivity |
| Sub Title (in English) | |
| Keyword(1) | Synfire Chain |
| Keyword(2) | Mexican-Hat |
| Keyword(3) | Fourier-0th Mode |
| Keyword(4) | 2nd Mode |
| Keyword(5) | Localized Activity |
| 1st Author's Name | Kosuke HAMAGUCHI |
| 1st Author's Affiliation | Department of Complexity Science and Engineering, Graduate School of Frontier Science, University of Tokyo() |
| 2nd Author's Name | Masato OKADA |
| 2nd Author's Affiliation | RIKEN, Brain Science Institute:"Intelligent Cooperation and Control", PRESTO, JST |
| 3rd Author's Name | Michiko YAMANA |
| 3rd Author's Affiliation | Central Research Institute of Electric Power Industry, Comm. and Info. Research Laboratory:RIKEN, Brain Science Institute |
| 4th Author's Name | Kazuyuki AIHARA |
| 4th Author's Affiliation | Department of Complexity Science and Engineering, Graduate School of Frontier Science, University of Tokyo |
| Date | 2003/6/20 |
| Paper # | NC2003-15 |
| Volume (vol) | vol.103 |
| Number (no) | 153 |
| Page | pp.pp.- |
| #Pages | 6 |
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