Visibility of chromatic flicker upon spectrally mixed adapting fields
Visibility of chromatic flicker upon spectrally mixed adapting fields
复制标题
光谱混合适应场上色闪烁的可见性
DOI：
10.1016/0042-6989(79)90048-8
复制
发表时间：
1979
期刊：
影响因子：
1.8
通讯作者：
M. C. Khoo
中科院分区：
文献类型：
--
作者：
C. E. Sternheim;C. Stromeyer;M. C. Khoo
在低频闪烁的红色场中加入稳定的绿光，或者在低频闪烁的绿色场中加入稳定的红光，可以降低闪烁的阈值。红色和绿色的适应灯以一种抵消的方式起作用，降低了门槛。这与独立的Π-mechanisms类似基本颜色机制的模型相反。当闪烁频率增加到12 Hz时，红、绿两种自适应场近似加性地提高了阈值。采用Stiles双色增量阈值法测量了该频率下中波长π - 4和长波长π - 5机制的光谱场灵敏度。然后用谱函数估计π4和π5在12 Hz时的闪烁灵敏度（韦伯分数），发现两者相似。
Adding steady green light to a low-frequency flickering red field or adding steady red light to a low-frequency green field reduced the flicker threshold. The red and green adapting lights act in a cancellative manner, lowering the threshold. This is contrary to a model of independent Π-mechanisms acting like fundamental color mechanisms. When the flicker frequency was increased to 12 Hz, red and green adapting fields acted approximately additively in raising the threshold. At this frequency the spectral field sensitivity of the middle-wavelengthπ4and long-wavelengthπ5mechanisms was measured with the two color increment threshold method of Stiles. The spectral functions were then used to estimate the flicker sensitivities (Weber fractions) ofπ4andπ5at 12 Hz, which were found to be similar.