Kelly D H, Boynton R M, Baron W S
Science. 1976 Dec 3;194(4269):1077-9. doi: 10.1126/science.824735.
A quantitative comparison is made between the psychophysical flicker response of man and similar data obtained electrophysiologically from the cones of macaque monkeys. When the psychophysical data are obtained from an eye that is strongly light-adapted, there is excellent agreement between the two sets of data at high frequencies. Under this condition, both kinds of data fit a distributed-parameter model, whose time constant also agrees with that derived from studies of the phosphenes elicited by electrical stimulation of the human eye. On the other hand, psychophysical data obtained with fully modulated stimuli (which minimally adapt the eye) yield a longer time constant for the same model. These results imply that the psychophysical flicker thresholds are normally controlled by a distributed filtering process that is proximal to the receptor stage. This slower, psychophysical process is evidently desensitized by intense adapting lights, so that the faster one that governs the electrophysiological responses can be detected.
对人类的心理物理闪烁反应与从猕猴视锥细胞通过电生理方式获得的类似数据进行了定量比较。当心理物理数据是从强光适应的眼睛获得时，两组数据在高频时具有极佳的一致性。在这种情况下，两种数据都符合一个分布参数模型，其时间常数也与通过对人眼进行电刺激所引发的光幻视研究得出的时间常数一致。另一方面，使用完全调制刺激（使眼睛适应程度最小）获得的心理物理数据，对于同一模型会产生更长的时间常数。这些结果表明，心理物理闪烁阈值通常由靠近感受器阶段的分布滤波过程控制。这种较慢的心理物理过程显然会因强烈的适应光而脱敏，从而能够检测到控制电生理反应的较快过程。
