| Presentation | 2002/1/21 Potentiation at the Schaffer Collateral Synapses Depending on Rhythmic Activity of a Hippocampal CA1-CA3 Model Toru SAITO, Hatsuo HAYASHI, Motoharu YOSHIDA, Satoru ISHIZUKA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Plastic change in synaptic connections that is an underlying mechanism for memory functions in the brain is caused by increase in the Ca^<2+> concentration due to high-frequency firing. The hippocampus, which relates to short-term memory and space recognition, is one of the brain tissues that cause long-term potentiation and depression at synapses. The hippocampal CA3 region also causes rhythmic activity that reflects the activity of the CA1 region. In this paper, we tried to develop a two-layer network model, CA1-CA3,whose Schaffer collateral synapses are augmented by the activity of CA3. Consequently, Schaffer collateral synapses are not augmented by spontaneous rhythms of CA3 but by chaotic responses of the delta rhythm of CA3 to periodic mossy fiber stimulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | hippocampus / neural network model / rhythmic activity / synaptic plasticity / intracellular Ca^<2+> concentration |
| Paper # | NLP2001-87(2002-01) |
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| Committee | NLP |
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| Conference Date | 2002/1/21(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) | Potentiation at the Schaffer Collateral Synapses Depending on Rhythmic Activity of a Hippocampal CA1-CA3 Model |
| Sub Title (in English) | |
| Keyword(1) | hippocampus |
| Keyword(2) | neural network model |
| Keyword(3) | rhythmic activity |
| Keyword(4) | synaptic plasticity |
| Keyword(5) | intracellular Ca^<2+> concentration |
| 1st Author's Name | Toru SAITO |
| 1st Author's Affiliation | Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology() |
| 2nd Author's Name | Hatsuo HAYASHI |
| 2nd Author's Affiliation | Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology |
| 3rd Author's Name | Motoharu YOSHIDA |
| 3rd Author's Affiliation | Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology |
| 4th Author's Name | Satoru ISHIZUKA |
| 4th Author's Affiliation | Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology |
| Date | 2002/1/21 |
| Paper # | NLP2001-87(2002-01) |
| Volume (vol) | vol.101 |
| Number (no) | 613 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |