不同亮度背景下的后像：一种新现象及一个假说。
After-images on backgrounds of different luminance: a new phenomenon and a hypothesis.
作者信息
Carpenter R H
出版信息
J Physiol. 1972 Nov;226(3):713-24. doi: 10.1113/jphysiol.1972.sp010005.
Abstract
- After-images may be caused to vanish suddenly and reversibly by viewing them against a background of suitable luminance I(e).2. The value of I(e) at any moment is not related to any parameter (intensity, colour, duration, time) describing the stimulus that caused the after-image.3. On the other hand, I(e) is very closely related to the immediate adaptational history of the eye, so that viewing a dark background for a few seconds lowers, and a light one raises, the value of I(e).4. It is suggested that the signal conveying sensations of relative brightness in this situation is related to the rate of change of concentration of an intermediate photo-product decaying spontaneously with a time constant of some 14 sec.
摘要
通过在具有合适亮度I(e)的背景下观察，后像可能会突然且可逆地消失。
在任何时刻，I(e)的值与描述产生后像的刺激的任何参数（强度、颜色、持续时间、时间）均无关。
另一方面，I(e)与眼睛的即时适应史密切相关，以至于观察几秒钟的暗背景会降低I(e)的值，而亮背景则会提高I(e)的值。
有人提出，在这种情况下传达相对亮度感觉的信号与一种中间光产物浓度的变化率有关，该中间光产物以约14秒的时间常数自发衰减。
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