Harwerth R S, Levi D M
Am J Optom Physiol Opt. 1978 Mar;55(3):151-62. doi: 10.1097/00006324-197803000-00004.
Psychophysical investigations of the effect of amblyopic process on the sustained and transient channels in the afferent visual pathway are reported. The experiments on photopic luminosity, increment-threshold spectral sensitivity, spatial contrast sensitivity, and reaction-time measures of suprathreshold grating detection provide converging evidence that in naturally occuring amblyopia of humans, the sustained neural channels are more severely affected than the transient channels. However, it appears that the sustained channels are not totally nonfunctional, but rather have a higher intensity requirement than normal.
本文报道了关于弱视过程对视觉传入通路中持续通道和瞬态通道影响的心理物理学研究。对明视觉光度、增量阈值光谱敏感性、空间对比敏感度以及超阈值光栅检测的反应时间测量所进行的实验提供了一致的证据，即在人类自然发生的弱视中，持续神经通道比瞬态通道受到的影响更严重。然而，似乎持续通道并非完全无功能，而是比正常情况具有更高的强度要求。
