| Presentation | 2020-03-04 Spike synchrony and firing rates for Border Ownership selective neurons in a disinhibition network Haruka Shimomura, Sou Nobukawa, Nobuhiko Wagatsuma, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Border Ownership (BO) tells which side of a contour owns a border, and it plays a fundamental role for the figure-ground segregation. Martin and von der Heydt have physiologically characterized attentional modulation on BO selective neurons for spike synchrony and firing rates. In order to understand the mechanisms of attentional modulation of responses on BO selective neuron, we propose a network model consisting of spiking neurons. To reproduce the observed physiological results, it was necessary to include two types of inhibitory neurons in our proposed model, SOM and VIP neurons, in addition to BO selective model neurons. Attention was mediated by the projection of VIP to SOM neurons, whereas visual inputs projected to both BO and SOM neurons. Simulations of the model indicated that attention decreased spike synchrony between pairs of BO model neurons, independent of the increase in their firing rates due to attention. These results suggested that the behavior of two types of inhibitory neurons underlie the attentional modulation during figure-ground segregation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Border-Ownership / Cortical Network Model / disinhibition / Visual Attention / Synchrony |
| Paper # | NC2019-86 |
| Date of Issue | 2020-02-26 (NC) |
| Conference Information | |
| Committee | NC / MBE |
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| Conference Date | 2020/3/4(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | University of Electro Communications |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Neuro Computing, Medical Engineering, etc. |
| Chair | Hayaru Shouno(UEC) / Taishin Nomura(Osaka Univ.) |
| Vice Chair | Kazuyuki Samejima(Tamagawa Univ) / Takashi Watanabe(Tohoku Univ.) |
| Secretary | Kazuyuki Samejima(NAIST) / Takashi Watanabe(NTT) |
| Assistant | Takashi Shinozaki(NICT) / Ken Takiyama(TUAT) / Yasuyuki Suzuki(Osaka Univ.) / Akihiro Karashima(Tohoku Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on Neurocomputing / Technical Committee on ME and Bio Cybernetics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Spike synchrony and firing rates for Border Ownership selective neurons in a disinhibition network |
| Sub Title (in English) | |
| Keyword(1) | Border-Ownership |
| Keyword(2) | Cortical Network Model |
| Keyword(3) | disinhibition |
| Keyword(4) | Visual Attention |
| Keyword(5) | Synchrony |
| 1st Author's Name | Haruka Shimomura |
| 1st Author's Affiliation | Toho University(Toho Univ) |
| 2nd Author's Name | Sou Nobukawa |
| 2nd Author's Affiliation | Chiba Institute of Technology(CIT) |
| 3rd Author's Name | Nobuhiko Wagatsuma |
| 3rd Author's Affiliation | Toho University(Toho Univ) |
| Date | 2020-03-04 |
| Paper # | NC2019-86 |
| Volume (vol) | vol.119 |
| Number (no) | NC-453 |
| Page | pp.pp.61-64(NC), |
| #Pages | 4 |
| Date of Issue | 2020-02-26 (NC) |