| Presentation | 2003/12/1 Adaptation of the visual system to a refractive error Takayuki KANNON, Hiroyuki SAKAI, Shigeki NAKAUCHl, Shiro USUI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Several lines of studies have suggested the existence of mechanisms that compensate the retinal image blur induced by a refractive error. In the current study we compared the visual acuities of blurred Snellen letters in various adaptation conditions in order to examine the hypothesis that the neural compensation mechanism can reduce the perceived blur due to spherical, cylindrical, and higher order aberration like coma. Our results demonstrated that the adaptation to noise blurred with a one-dimensional Gaussian filter improved the ability to recognize letters applied the same filter along the iso-orientation axis, but not along the orthogonal axis. Furthermore, in the case of adaptation to a phase shifted natural image, the visual acuity measured by the phase shifted letters was improved. These results suggest that the compensation mechanism is acqired in the visual system to reduce the retinal image blur due to myopia, astigmatism, and coma-like aberration, which supports our hypothesis. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | refractive error / visual system / adaptation |
| Paper # | NC2003-97 |
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| Conference Information | |
| Committee | NC |
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| Conference Date | 2003/12/1(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) | Adaptation of the visual system to a refractive error |
| Sub Title (in English) | |
| Keyword(1) | refractive error |
| Keyword(2) | visual system |
| Keyword(3) | adaptation |
| 1st Author's Name | Takayuki KANNON |
| 1st Author's Affiliation | Department of Information and Computer Sciences, Toyohashi University of Technology() |
| 2nd Author's Name | Hiroyuki SAKAI |
| 2nd Author's Affiliation | Brain Science Institute, RIKEN |
| 3rd Author's Name | Shigeki NAKAUCHl |
| 3rd Author's Affiliation | Department of Information and Computer Sciences, Toyohashi University of Technology |
| 4th Author's Name | Shiro USUI |
| 4th Author's Affiliation | Brain Science Institute, RIKEN |
| Date | 2003/12/1 |
| Paper # | NC2003-97 |
| Volume (vol) | vol.103 |
| Number (no) | 490 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |