Comparing the visibility of low‐contrast color Landolt‐Cs: Effect of aging human lens
Comparing the visibility of low‐contrast color Landolt‐Cs: Effect of aging human lens
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比较低对比度彩色 Landolt-Cs 的可见度：老化的人类晶状体的影响
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
K. Okajima
中科院分区：
文献类型：
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作者：
Toshihiro Suzuki;Qiang Yi;S. Sakuragawa;H. Tamura;K. Okajima
我们测量的响应时间，无响应，响应误差，和主观能见度评价彩色兰道尔特-Cs与灰色背景的CRT显示器上提出的年轻人和老年人（平均年龄：22.3和65.9岁，分别）和相同的年轻人戴眼镜的过滤器模拟老化的人类晶状体透镜。比较老年人和年轻人的结果没有过滤器，老年人的结果显示出更长的反应时间，更高的无反应率，更慢的反应速度，和更低的可见性，特别是对灰色和蓝色的刺激。相反，配备过滤器的年轻受试者的结果显示出与老年受试者相似的趋势。这些结果表明，泛黄的人的透镜强烈地影响在老年人的颜色目标的可见性，并佩戴过滤器，使年轻的成年人，以模拟老年人的可见性。这表明，模拟滤波器以及老化的人的透镜修改有效亮度，有效亮度对比度，和颜色目标和视网膜上的背景之间的色差。此外，主观评价和响应速度之间的关系随着年龄的变化显着，无论过滤器，这表明，不仅主观评价，而且性能的评价，如响应速度，是重要的，在估计老年人的能见度和可控性。本研究中使用的过滤器将是一个有效的工具，年轻人来评估老年人的能见度在响应速度和主观评价的能见度。© 2004 Wiley Periodicals，Inc. Col Res Appl，30，5-12，2005;在线发表于Wiley InterScience（www.interscience.wiley.com）。DOI 10.1002/col.20071
We measured response time, the number of nonresponses, response error, and subjective visibility evaluation for color Landolt-Cs with a gray color background presented on a CRT display to young and old adults (mean ages: 22.3 and 65.9 years, respectively) and to the same young adults wearing glasses with filters simulating an aging human crystalline lens. Comparing the results of elderly and young subjects without the filter, the results of the elderly subjects showed a longer response time, higher nonresponse ratio, slower response speed, and lower visibility, particularly for gray and blue stimuli. Conversely, the results for the young subjects who were fitted with the filters showed tendencies similar to those of the elderly subjects. These results indicate that the yellowing of the human lens strongly influences the visibility of color targets in the elderly and that wearing the filters enables young adults to simulate the visibility of the elderly. It suggests that the simulated filter as well as the aging human lens modifies the effective luminance, effective luminance contrast, and color difference between the color target and the background on the retina. Moreover, the relationship between the subjective evaluation and the response speed changes remarkably with age, regardless of the filters, suggesting that not only the subjective evaluation but also the evaluation of the performance, such as response speed, is important in estimating visibility and controllability in the elderly. The filter used in the present study will be an effective tool for the young to evaluate the visibility of elderly adults in terms of both response speed and subjective evaluation of visibility. © 2004 Wiley Periodicals, Inc. Col Res Appl, 30, 5–12, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/col.20071
人类中央凹颜色机制在整个生命周期的敏感性。
DOI：
10.1364/josaa.5.002122
发表时间：
1988
期刊：
Journal of the Optical Society of America. A, Optics and image science
影响因子：
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作者：
Werner,JS;Steele,VG
通讯作者：
Steele,VG