| Presentation | 1998/5/15 Dynamics of an Ensemble of Leaky Integrate-and-Fire Neuron Models and Its Response to a Pulse Input Seiji TANABE, Khashayar PAKDAMAN, Taishin NOMURA, Shunsuke SATO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have derived analytically and numerically the stationary distribution of the membrane potentials of an ensemble of leaky integrate-and-fire neuron models in the presence of noise. For small noise, the distribution is similar to that of a free-running Ornstein-Uhlenbeck process, while at larger noise levels, the two distributions depart significantly from one another: due to resetting lower membrane potential values become more likely. Assuming that the amplitude of an input pulse is encoded by the fraction of units within the ensemble that fire within a short interval following the input arrival, we have computed the input-output mutual information for various input distributions. One key result that appears is that the presence of noise of appropriate amplitude can improve signal transmission, as attested by the mutual information being maximal at some intermediate noise level. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | sensory system / leaky integrate-and-fire model / noise / pulse input |
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| Committee | NLP |
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| Conference Date | 1998/5/15(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Nonlinear Problems (NLP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Dynamics of an Ensemble of Leaky Integrate-and-Fire Neuron Models and Its Response to a Pulse Input |
| Sub Title (in English) | |
| Keyword(1) | sensory system |
| Keyword(2) | leaky integrate-and-fire model |
| Keyword(3) | noise |
| Keyword(4) | pulse input |
| 1st Author's Name | Seiji TANABE |
| 1st Author's Affiliation | Department of Systems and Human Science, Graduate School of Engineering Science, Osaka University() |
| 2nd Author's Name | Khashayar PAKDAMAN |
| 2nd Author's Affiliation | Department of Systems and Human Science, Graduate School of Engineering Science, Osaka University |
| 3rd Author's Name | Taishin NOMURA |
| 3rd Author's Affiliation | Department of Systems and Human Science, Graduate School of Engineering Science, Osaka University |
| 4th Author's Name | Shunsuke SATO |
| 4th Author's Affiliation | Department of Systems and Human Science, Graduate School of Engineering Science, Osaka University |
| Date | 1998/5/15 |
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| Volume (vol) | vol.98 |
| Number (no) | 45 |
| Page | pp.pp.- |
| #Pages | 8 |
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