Toyoda J, Kondo H
Jpn J Physiol. 1976;26(6):591-601. doi: 10.2170/jjphysiol.26.591.
Frequency characteristics of photopic and scotopic L-type S-potentials were studied in the carp retina, using either an impulse or a sinusoidal light input superimposed on a steady background light of various intensities. The photopic type responses were faster than the scotopic responses if their frequency characteristics were compared without background illumination. However, the difference was not absolute. Both types of responses became faster in the presence of background illumination. The stronger the background, the faster was the response. At relatively high background intensities, the response to a flash became diphasic due to the rebound effect which corresponds to a low frequency attenuation in the gain characteristics. The main difference between the two types of responses was found in the phase relation; the scotopic units showed more phase lag indicating an extra delay even under a condition in which the time course of their response was faster than that of the photopic units.
在鲤鱼视网膜中研究了明视觉和暗视觉L型S电位的频率特性，使用叠加在各种强度稳定背景光上的脉冲或正弦光输入。如果在没有背景照明的情况下比较它们的频率特性，明视觉类型的反应比暗视觉反应更快。然而，这种差异不是绝对的。在有背景照明的情况下，两种类型的反应都变得更快。背景越强，反应越快。在相对较高的背景强度下，由于对应于增益特性中低频衰减的反弹效应，对闪光的反应变为双相。两种类型反应的主要区别在于相位关系；暗视觉单元表现出更多的相位滞后，这表明即使在其反应的时间进程比明视觉单元更快的条件下，也存在额外的延迟。
