| Presentation | 2003/11/15 Synchronized subthreshold oscillations and phase coding in a network model of the entorhinal cortex layer II Jun Igarashi, Motoharu Yoshida, Katsumi Tateno, Hatsuo Hayashi, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A network model of the entorhinal cortex layer II that consisted of stellate cells and an interneuron was constructed. The stellate cell reproduced subthreshold oscillations observed in physiological experiments. The subthreshold oscillations were synchronized with each other through an inhibitory interneuron in the present network model, and rhythmic activity in the theta frequency range was generated. Neuronal firing in the entorhinal cortex layer II is projected to the entorhinal cortex layer V through the tri-synaptic circuit of the hippocampus. Since connections from the layer V to the layer II exist in the entorhinal cortex, loop circuits may exist in the entorhinal cortex-hippocampal system. Firing of the stellate cells in the layer II was therefore projected to other stellate cells in the same layer with the delay time of 25 ms in the present model. Consequently, the stellate cells fired successively at intervals of 25 ms in depolarized phases of the theta wave. The present entorhinal cortex model reproduces the phase precession that has been known as a characteristic of place cells. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | entorhinal cortex / stellate cell / neural network model / subthreshold oscillations / theta rhythm / phase precession |
| Paper # | NLP2003-119 |
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| Conference Information | |
| Committee | NLP |
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| Conference Date | 2003/11/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| 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) | Synchronized subthreshold oscillations and phase coding in a network model of the entorhinal cortex layer II |
| Sub Title (in English) | |
| Keyword(1) | entorhinal cortex |
| Keyword(2) | stellate cell |
| Keyword(3) | neural network model |
| Keyword(4) | subthreshold oscillations |
| Keyword(5) | theta rhythm |
| Keyword(6) | phase precession |
| 1st Author's Name | Jun Igarashi |
| 1st Author's Affiliation | Department of Brain Science and Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology() |
| 2nd Author's Name | Motoharu Yoshida |
| 2nd Author's Affiliation | Faculty of computer science and systems engineering, Kyushu Institute of Technology |
| 3rd Author's Name | Katsumi Tateno |
| 3rd Author's Affiliation | Department of Brain Science and Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology |
| 4th Author's Name | Hatsuo Hayashi |
| 4th Author's Affiliation | Department of Brain Science and Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology |
| Date | 2003/11/15 |
| Paper # | NLP2003-119 |
| Volume (vol) | vol.103 |
| Number (no) | 464 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |