Spectral sensitivity of the dark-adapted extrafoveal retina at photopic intensities.
Spectral sensitivity of the dark-adapted extrafoveal retina at photopic intensities.
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明视强度下暗适应的中心凹外视网膜的光谱敏感性。
DOI：
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发表时间：
1981
影响因子：
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通讯作者：
B. Stabell
中科院分区：
文献类型：
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作者：
U. Stabell;B. Stabell
通过使用异色亮度匹配技术，其中的测试和比较领域被连续地提出，光谱等亮度函数进行了测量，在暗适应状态下，在视网膜照明1000明视trolands在6，28，45，和65度时间的中央凹。此外，光谱等亮度函数测量在10，100，1000，和6400明视troland在17度的时间。与以前的结果形成鲜明对比，所有的光谱亮度函数被发现基本上是暗视的形式，峰值灵敏度在500 nm左右。本研究与以往研究结果的差异可以归因于所用方法的不同。因此，它被发现，同时，相对于连续的，测试和比较领域的介绍抑制杆活动在测试领域在相当大的程度上。得出的结论是，杆可以在比以前假设的高得多的强度水平下在中心凹外视觉中起作用并影响亮度响应。
By using a heterochromatic brightness-matching technique, in which the test and comparison field were presented in succession, spectral equal-brightness functions were measured in a dark-adapted state at a retinal illumination of 1000 photopic trolands at 6, 28, 45, and 65 degrees temporally to the fovea. In addition, the spectral equal-brightness functions were measured at 10, 100, 1000, and 6400 photopic trolands at 17 degrees temporally. In striking contrast with previous results, all the spectral brightness functions obtained were found to be basically scotopic in form, with peak sensitivities at about 500 nm. The difference in results between the present study and previous studies could be ascribed to the difference in method employed. Thus it was found that simultaneous, relative to successive, presentation of test and comparison fields depresses rod activity in the test field to a considerable extent. It was concluded that rods may function and influence the brightness response in extrafoveal vision at much higher intensity levels than was previously assumed.