| Presentation | 2003/1/17 一次視覚野のチャネルの賦活効果を数式で予測できるか? : 視覚誘発電位に対する他の組み合わせと輝度差の影響 Yoshinobu GOTO, Takao YAMASAKI, Takayuki TANIWAKI, Shozo TOBIMATSU, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Previous studies have shown three types of color signal cells in the primary visual cortex (VI) in humans. Our question was how these color cells extract information from cones. We tried to estimate the activating effects of channels in VI by an algebraic formula. We recorded flicker VEPs to different color combinations and quantified the effects of changes in color and luminance combinations. In the results, VHP amplitudes were reduced by aging. Two amplitude peaks (9 and 18Hz) were observed in all kinds of isoluminant color combination stimuli against the temporal frequency. In addition, this characteristic was modulated by luminance. These changes highly depended on the activation rates of luminance, color-luminance and color channels. Therefore, we can estimate the activating effects of VEPs by summating the different types of color cell activations in VI. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | primary visual cortex / luminance channel / color channel / cone |
| Paper # | MBE2002-95 |
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| Conference Information | |
| Committee | MBE |
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| Conference Date | 2003/1/17(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) | |
| Sub Title (in English) | |
| Keyword(1) | primary visual cortex |
| Keyword(2) | luminance channel |
| Keyword(3) | color channel |
| Keyword(4) | cone |
| 1st Author's Name | Yoshinobu GOTO |
| 1st Author's Affiliation | Department of Clinical Neurophysiology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University() |
| 2nd Author's Name | Takao YAMASAKI |
| 2nd Author's Affiliation | Department of Clinical Neurophysiology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University |
| 3rd Author's Name | Takayuki TANIWAKI |
| 3rd Author's Affiliation | Department of Clinical Neurophysiology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University |
| 4th Author's Name | Shozo TOBIMATSU |
| 4th Author's Affiliation | Department of Clinical Neurophysiology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University |
| Date | 2003/1/17 |
| Paper # | MBE2002-95 |
| Volume (vol) | vol.102 |
| Number (no) | 596 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |