Jameson D, Hurvich L M, Varner F D
Proc Natl Acad Sci U S A. 1979 Jun;76(6):3034-8. doi: 10.1073/pnas.76.6.3034.
The time course of recovery from chromatic adaptation in human vision was tracked by determining the wavelength of light that appears uniquely yellow (neither red nor green) both before and after exposure to yellowish green and yellowish red adapting lights. Recovery is complete within 5 min after steady light exposure. After exposure to the alternating repeated sequence 10-sec light/10-sec dark, the initial magnitude of the aftereffect is reduced but recovery is retarded. The results are interpreted in terms of two processes located at different levels in the hierarchical organization of the visual system. One is a change in the balance of cone receptor sensitivities; the second is a shift in the equilibrium baseline between opposite-signed responses of the red/green channel at the opponent-process neural level. The baseline-shift mechanism is effective in the condition in which repeated input signals originating at the receptors are of sufficient strength to activate the system effectively. Hence, this process is revealed in the alternating adaptation condition when the receptors undergo partial recovery after each light exposure, but receptor adaptation during continued steady light exposure effectively protects the subsequent neural systems from continued strong activation.
通过确定在暴露于黄绿色和黄红色适应光之前和之后呈现独特黄色（非红色也非绿色）的光的波长，来追踪人类视觉中从颜色适应恢复的时间进程。在稳定光照后5分钟内恢复完成。在暴露于10秒光照/10秒黑暗的交替重复序列后，后效应的初始大小减小，但恢复延迟。结果根据视觉系统层次组织中不同水平的两个过程来解释。一个是视锥细胞受体敏感性平衡的变化；第二个是在对立过程神经水平上红/绿通道相反符号反应之间平衡基线的移动。基线移动机制在受体产生的重复输入信号具有足够强度以有效激活系统的条件下有效。因此，当受体在每次光照后经历部分恢复，但在持续稳定光照期间受体适应有效地保护后续神经系统免受持续强烈激活时，这个过程在交替适应条件下得以揭示。
