THE INFLUENCE OF CAFFEINE ON THE COLOR SENSITIVITY
THE INFLUENCE OF CAFFEINE ON THE COLOR SENSITIVITY
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咖啡因对颜色敏感性的影响
DOI：
10.1111/j.1755-3768.1939.tb04309.x
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发表时间：
1939
期刊：
影响因子：
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通讯作者：
S. V. Kravkov
中科院分区：
文献类型：
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作者：
S. V. Kravkov
方法：在我们的实验中，我们使用了一个施密特和亨施分光镜。通过这台仪器，我们能够将不同的单色光线直接照射到受试者的眼睛上。仪器的视野是在一个做成正方形的横膈膜的帮助下形成的，受试者以1.3 °的角度看到横膈膜的每一边。因此，兴奋触及视网膜的中央凹区域。通过在准直器的狭缝前插入光楔，我们可以减弱受试者所看到的光的亮度。实验的目的是确定受试者在其视野中不再能标记彩色的最小亮度。这）>阈值的色度<<是在任何时候建立的方法，消除，即通过减少亮度的刺激。光楔中表示色度消失的位置的透射能力为我们表征了阈值。与阈值相反的值由我们计算作为对应于颜色灵敏度的值。在下面的每个地方，我们都给出了这种相对值的颜色敏感性。我们确定了与波长为590毫微微埃的红橙色射线有关的颜色敏感性和与波长为530毫微微埃的绿色射线有关的颜色敏感性。测试在一个半小时内进行，
Method.In our experiments we used a Schmidt and Haensch spectroscope. By means of this instrument we were able to direct different monochromatic rays to the eyes of the subject. The visual field of the instrument was with the help of a diaphragm made to equal a square, each side of which was seen by the subject at an angle of 1, 3O. Thus the excitation touched in the foveal region of the retina. By inserting a photowedge in front of the collimator’s slit we could weaken the brightness of the light as seen by the subject. The purpose of the experiment was to determine that minimum brightness whereby the subject could no longer mark chromatic color in his visual field. This)> threshold of chromaticity<< was at all times established by the method of extinguishment, ie by diminishing the brightness of the stimulus. The transmission capacity of that place of the photo-wedge where the disappearance of chromaticity is denoted, has characterized for us the threshold value. The value inverse to the threshold was calculated by us as a value corresponding to the color sensitivity. Everywhere below, we give the color sensibility in such relative values. We established the color sensibility in relation to red-orange rays, with a wave-length of 590 mp and in relation to green rays of a wave-length of 530 my*). The test was performed during a one and a half