| Presentation | 2018-11-22 Controlling of Working Memory by Synchronization of Oscillatory Activity in Inhibitory Neurons Kentaro Hayashida, Yasuhiro Tsubo, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Working memory (WM) is a neural storage system which retains information temporarily. Some studies have claimed that WM is realized by using time-locked spatiotemporal firing patterns (polychronous neuronal groups: PNGs). In addition, a number of experiments have shown that performance of WM tasks was correlated with alpha power in electroencephalogram. Recent numerical studies also demonstrated that phase difference of alpha-band activity between them two neuronal groups modulate information transmission efficiency between them. However, it has not been clarified how the phase difference of alpha-band activity between the neuronal groups affects formation of PNGs. In this study, we introduced a spiking neural network model composed of two mutually connected groups modulated by external alpha-band oscillatory input with phase difference in order to investigate how the phase difference of alpha oscillation modulates the PNG formation. We found that small but non-zero phase difference between the groups facilitated the formation of PNGs which span two groups in comparison with the case with no phase difference. This result indicates the phase difference of oscillatory inputs may control PNG formation. Further studies are needed in order to investigate the effect of the phase difference on the performance of WM tasks. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | polychronous neuronal group / STDP / working memory / alpha rhythm |
| Paper # | NC2018-25 |
| Date of Issue | 2018-11-15 (NC) |
| Conference Information | |
| Committee | MBE / NC |
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| Conference Date | 2018/11/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Masaki Kyoso(TCU) / Yutaka Hirata(Chubu Univ.) |
| Vice Chair | Taishin Nomura(Osaka Univ.) / Hayaru Shouno(UEC) |
| Secretary | Taishin Nomura(Kindai Univ.) / Hayaru Shouno(Nagoya Univ.) |
| Assistant | Takumi Kobayashi(YNU) / Ｙａｓｕｙｕｋｉ Ｓｕｚｕｋｉ(Osaka Univ.) / Keiichiro Inagaki(Chubu Univ.) / Takashi Shinozaki(NICT) |
| Paper Information | |
| Registration To | Technical Committee on ME and Bio Cybernetics / Technical Committee on Neurocomputing |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Controlling of Working Memory by Synchronization of Oscillatory Activity in Inhibitory Neurons |
| Sub Title (in English) | |
| Keyword(1) | polychronous neuronal group |
| Keyword(2) | STDP |
| Keyword(3) | working memory |
| Keyword(4) | alpha rhythm |
| 1st Author's Name | Kentaro Hayashida |
| 1st Author's Affiliation | Ritsumeikan University(Ritsumeikan Univ.) |
| 2nd Author's Name | Yasuhiro Tsubo |
| 2nd Author's Affiliation | Ritsumeikan University(Ritsumeikan Univ.) |
| Date | 2018-11-22 |
| Paper # | NC2018-25 |
| Volume (vol) | vol.118 |
| Number (no) | NC-322 |
| Page | pp.pp.11-16(NC), |
| #Pages | 6 |
| Date of Issue | 2018-11-15 (NC) |