PSYCHOPHYSICAL STUDIES OF MONKEY VISION .3. SPATIAL LUMINANCE CONTRAST SENSITIVITY TESTS OF MACAQUE AND HUMAN OBSERVERS
PSYCHOPHYSICAL STUDIES OF MONKEY VISION .3. SPATIAL LUMINANCE CONTRAST SENSITIVITY TESTS OF MACAQUE AND HUMAN OBSERVERS
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DOI：
10.1016/0042-6989(74)90118-7
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发表时间：
1974-01-01
期刊：
影响因子：
1.8
通讯作者：
SNODDERLY, DM
中科院分区：
文献类型：
--
作者：
DEVALOIS, RL;MORGAN, H;SNODDERLY, DM
在五个不同的适应水平的三只猕猴和五个正常人观察者的不同空间频率的亮度调制光栅的检测能力进行了测定。人类和猕猴观察员给出的结果在形式上相同，在绝对值上相似。这两个物种显示出最佳的对比敏感度在中间的空间频率范围约3-5 c/deg的低频和高频衰减，在高光水平。随着适应水平的降低，对高频的对比敏感度迅速下降，从而导致峰值敏感度向较低空间频率的偏移。在最低的适应水平研究，猕猴和人类观察员都没有表现出任何低频衰减的空间亮度对比敏感度函数。
The detectability of luminance modulated gratings of different spatial frequencies was determined at five different adaptation levels for three macaque monkeys and five normal human observers. The human and macaque observers gave results which were identical in form and similar in absolute values. Both species showed optimal contrast sensitivity in the middle spatial frequency range of about 3–5 c/deg with both low and high frequency attenuation, at high light levels. Contrast sensitivity to high frequencies dropped rapidly as adaptation levels were lowered, with a resulting shift in peak sensitivity to lower spatial frequencies. At the lowest adaptation level studied, neither macaque nor human observers showed any low frequency attenuation in the spatial luminance contrast sensitivity function.