| Presentation | 2014-01-25 Functional role of top-down signals from the avian visual cortex to the tect-isthmo-retinal system in visual search Yuki TAKEUCHI, Satoshi TSURUMARU, Hiroshi OHNO, Hiroyuki UCHIYAMA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The avian retinopetal system, or the tecto-isthmo-retinal (TIR) system, is composed of three serially-connected neurons; the tecto-isthmo-optic (tecto-IO) neurons, the isthmo-optic (IO) neurons, and IO target cell. The primary neuron of the TIR system, the tecto-IO neuron, receives both top-down signals from the avian visual cortex equivalent, hyperpallium apicale (HA), and bottom-up signals from the retina. In the present study, in order to investigate the functional role of the top-down signals to the TIR system, we inactivated HA by cooling and evaluated effects of the inactivation on visual search performance. By HA inactivation, as in the cases of blockage of retinopetal signals, accuracy of target selection significantly decreased. Thus, the top-down signals from HA to the TIR system may substantially contribute to generation of the retinopetal signals. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | retina / centrifugal projection / retinopetal system / hyperpallium / visual search |
| Paper # | MBE2013-106 |
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| Committee | MBE |
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| Conference Date | 2014/1/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | ME and Bio Cybernetics (MBE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Functional role of top-down signals from the avian visual cortex to the tect-isthmo-retinal system in visual search |
| Sub Title (in English) | |
| Keyword(1) | retina |
| Keyword(2) | centrifugal projection |
| Keyword(3) | retinopetal system |
| Keyword(4) | hyperpallium |
| Keyword(5) | visual search |
| 1st Author's Name | Yuki TAKEUCHI |
| 1st Author's Affiliation | Faculty of Engineering, Kagoshima University() |
| 2nd Author's Name | Satoshi TSURUMARU |
| 2nd Author's Affiliation | Faculty of Engineering, Kagoshima University |
| 3rd Author's Name | Hiroshi OHNO |
| 3rd Author's Affiliation | Faculty of Engineering, Kagoshima University |
| 4th Author's Name | Hiroyuki UCHIYAMA |
| 4th Author's Affiliation | Faculty of Engineering, Kagoshima University |
| Date | 2014-01-25 |
| Paper # | MBE2013-106 |
| Volume (vol) | vol.113 |
| Number (no) | 409 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |