Di Lollo V, Bischof W F
Department of Psychology, University of Alberta, Edmonton, Canada.
Psychol Bull. 1995 Sep;118(2):223-37. doi: 10.1037/0033-2909.118.2.223.
Duration of visible persistence can vary inversely with stimulus intensity. This inverse-intensity effect is obtained by varying the intensity of the stimuli or of the background, provided that the variations extend into the mesopic range. A similar relationship--known as the Ferry-Porter law--holds for the critical frequency at fusion (CFF). The authors propose that studies of CFF, 2-pulse threshold, and visible persistence can be encompassed within 1 conceptual framework in which the effect is modeled by the progressive reduction in the temporal extent of the positive phase of the system's response as the level of light adaptation changes from scotopic to photopic. In this context, the authors present an integrative scheme in which G. Sperling and M. M. Sondhi's (1968) formal model and M. Coltheart's (1980) neurophysiological conjecture are shown to be compatible and complementary accounts of the effect.
可见余像的持续时间可能与刺激强度成反比。只要变化延伸到中间视觉范围，通过改变刺激或背景的强度就能获得这种强度反比效应。对于融合临界频率（CFF），也存在类似的关系——即费里-波特定律。作者们提出，对CFF、双脉冲阈值和可见余像的研究可以纳入一个概念框架，在这个框架中，随着光适应水平从暗视觉转变为明视觉，系统响应正相的时间范围逐渐缩小，以此来模拟这种效应。在此背景下，作者们提出了一个综合方案，其中表明G. 斯珀林和M. M. 桑迪（1968年）的形式模型与M. 科尔特哈特（1980年）的神经生理学推测是对该效应兼容且互补的解释。
