Habitual wearers of colored lenses adapt more rapidly to the color changes the lenses produce
Habitual wearers of colored lenses adapt more rapidly to the color changes the lenses produce
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DOI：
10.1016/j.visres.2016.05.003
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发表时间：
2016-08-01
期刊：
影响因子：
1.8
通讯作者：
Allen, Peter M.
中科院分区：
文献类型：
--
作者：
Engel, Stephen A.;Wilkins, Arnold J.;Allen, Peter M.
视觉系统不断适应环境，使其在不断变化的视觉世界中表现最佳。每当人们摘下或戴上一副眼镜，就会发生很大的变化。对于视觉系统来说，学会特别迅速地适应如此大的、经常发生的事件是有利的，但它是否能做到这一点尚不清楚。在这里，我们测试了那些经常戴有色镜片眼镜的人，他们对镜片产生的颜色变化的适应速度是否会加快。对全局色移的适应导致测试颜色的外观发生变化。当受试者戴上和摘下眼镜时，我们测量了呈现“独特的黄色”的颜色变化，这种黄色既不红也不绿。9名习惯性佩戴者和9名年龄相匹配的对照者，每隔5秒判断一个小的单色测试光的颜色，这个测试光被一个大的、均匀的、白色的环绕着。红色透镜将独特的黄色移到更红的颜色（波长更长），绿色透镜将其移到更绿的颜色（波长更短），这与适应“正常化”世界的外观是一致的。在对照组中，这种适应的时间过程包含一个大的、快速的组成部分和一个较小的渐进组成部分，这与先前的结果一致。关键是，在习惯性佩戴者中，快速成分明显大于对照组，渐进成分明显小于对照组。习惯佩戴者的总适应量也比对照组大。这些数据有力地表明，随着时间的推移，随着环境的反复出现，视觉系统的适应速度和强度越来越快。另一个意想不到的发现是，基线独特的黄色与习惯佩戴的镜片产生的黄色方向相反。总的来说，我们的结果代表了第一份正式报告之一，即随着时间的推移，适应戴上或摘下眼镜变得更容易，并且可能对临床管理具有重要意义。(C) 2016年作者。Elsevier Ltd.出版。这是一篇基于CC BY-NC-ND许可的开放获取文章。
The visual system continuously adapts to the environment, allowing it to perform optimally in a changing visual world. One large change occurs every time one takes off or puts on a pair of spectacles. It would be advantageous for the visual system to learn to adapt particularly rapidly to such large, commonly occurring events, but whether it can do so remains unknown. Here, we tested whether people who routinely wear spectacles with colored lenses increase how rapidly they adapt to the color shifts their lenses produce. Adaptation to a global color shift causes the appearance of a test color to change. We measured changes in the color that appeared "unique yellow", that is neither reddish nor greenish, as subjects donned and removed their spectacles. Nine habitual wearers and nine age-matched control subjects judged the color of a small monochromatic test light presented with a large, uniform, whitish surround every 5 s. Red lenses shifted unique yellow to more reddish colors (longer wavelengths), and greenish lenses shifted it to more greenish colors (shorter wavelengths), consistent with adaptation "normalizing" the appearance of the world. In controls, the time course of this adaptation contained a large, rapid component and a smaller gradual one, in agreement with prior results. Critically, in habitual wearers the rapid component was significantly larger, and the gradual component significantly smaller than in controls. The total amount of adaptation was also larger in habitual wearers than in controls. These data suggest strongly that the visual system adapts with increasing rapidity and strength as environments are encountered repeatedly over time. An additional unexpected finding was that baseline unique yellow shifted in a direction opposite to that produced by the habitually worn lenses. Overall, our results represent one of the first formal reports that adjusting to putting on or taking off spectacles becomes easier over time, and may have important implications for clinical management. (C) 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license.