| Presentation | 2005/3/23 Activity profiles of the isthmo-optic neurons in head-unrestrained quails Hiroshi OHNO, Masanori OSAKO, Fuku ARIMURA, Jin FUKUDA, Hiroyuki UCHIYAMA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The isthmo-optic (IO) neurons in the isthmo-optic nucleus (ION) project their axons to the contralateral retina in birds, and are suggested to be involved in attentional modulation of retina output (Uchiyama et al., 2004). We recorded activity of the IO neurons in awake, head-unrestrained Japanese quails by means of a chronic electrode assembly implated stereotaxically into the ION. Simultaneously we videotaped head movements with a high-speed video camera (100 fps), and then analyzed activity profiles of the IO neurons with respite to head and eyelid movements. We found that activity of the IO neurons were suppressed during head movements and elevated around ends of the movements. Furthermore, we found impairment of visual search in ION-lesioned animals. We will discuss the activity profiles of the IO neurons in terms of their possible role in visually-guided behaviors. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | focal attention / visually-guided behavior / centrifugal modulation of vision |
| Paper # | NC2004-199 |
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| Conference Information | |
| Committee | NC |
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| Conference Date | 2005/3/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Neurocomputing (NC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Activity profiles of the isthmo-optic neurons in head-unrestrained quails |
| Sub Title (in English) | |
| Keyword(1) | focal attention |
| Keyword(2) | visually-guided behavior |
| Keyword(3) | centrifugal modulation of vision |
| 1st Author's Name | Hiroshi OHNO |
| 1st Author's Affiliation | Faculty of Engineering, Kagoshima University() |
| 2nd Author's Name | Masanori OSAKO |
| 2nd Author's Affiliation | Faculty of Engineering, Kagoshima University |
| 3rd Author's Name | Fuku ARIMURA |
| 3rd Author's Affiliation | Faculty of Engineering, Kagoshima University |
| 4th Author's Name | Jin FUKUDA |
| 4th Author's Affiliation | Faculty of Engineering, Kagoshima University |
| 5th Author's Name | Hiroyuki UCHIYAMA |
| 5th Author's Affiliation | Faculty of Engineering, Kagoshima University |
| Date | 2005/3/23 |
| Paper # | NC2004-199 |
| Volume (vol) | vol.104 |
| Number (no) | 760 |
| Page | pp.pp.- |
| #Pages | 5 |
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