Abramov I, Gordon J
J Opt Soc Am. 1977 Feb;67(2):195-202. doi: 10.1364/josa.67.000195.
Spectral sensitivity was measured by heterochromatic flicker photometry both in the fovea and at 45 degrees in the periphery, using a 1200 troland standard. At each location, sensitivity functions were obtained using both large and small targets. While the foveal functions were normal, the peripheral ones showed a large enhancement in sensitivity to short wavelengths relative to long wavelengths. Similar results in the past had been criticized on the ground that they might have been due to differential chromatic adaptation of cone mechanisms. In this study such an interpretation was ruled out by additional control experiments including varying luminance and wavelength of the standard light. The possibility of a rod contribution to the peripheral functions could not be eliminated although several different techniques, including the Stiles-Crawford effect, were used to try to isolate cone mechanisms.
使用1200特罗兰德标准，通过异色闪烁光度法测量了中央凹以及周边45度处的光谱敏感度。在每个位置，分别使用大目标和小目标获得了敏感度函数。虽然中央凹的函数正常，但周边的函数显示出相对于长波长，对短波长的敏感度有大幅增强。过去类似的结果曾受到批评，理由是它们可能是由于视锥机制的差异色适应所致。在本研究中，通过包括改变标准光的亮度和波长在内的额外对照实验排除了这种解释。尽管使用了几种不同的技术，包括斯泰尔斯-克劳福德效应，试图分离视锥机制，但仍无法排除视杆细胞对周边函数有贡献的可能性。
