Neumeyer C, Wietsma J J, Spekreijse H
Institut für Zoologie, Joh. Gutenberg-Universität, Mainz, F.R.G.
Vision Res. 1991;31(3):537-49. doi: 10.1016/0042-6989(91)90104-d.
Spectral sensitivity was measured under different adaptation levels using a behavioral training technique in which the fish had to discriminate between a dark test field and a test field illuminated with monochromatic light. Depending on which of the two test fields was used as training test field, two functions were obtained which differ (1) in absolute sensitivity and (2) in shape. When trained on the dark test field, the fish seems to discriminate on the basis of a "color" cue, but it uses a "brightness" cue when trained on the illuminated test field. This was concluded from measurements of wavelength discrimination. Under low levels of the adaptation light (1.5 and 0.2 lx instead of 20 lx), the L-cone type contributes to perception of "brightness" but not to color vision. This difference in the adaptation behavior in the long-wavelength range was used to identify the ganglion cells which may represent channels for "brightness" and "color" in the retina. Action spectra were recorded extracellularly at different levels of dark- and light-adaptation.
使用行为训练技术在不同适应水平下测量光谱敏感性，在该技术中，鱼必须区分黑暗测试场和用单色光照明的测试场。根据将两个测试场中的哪一个用作训练测试场，获得了两个函数，这两个函数在（1）绝对敏感性和（2）形状方面有所不同。当在黑暗测试场进行训练时，鱼似乎基于“颜色”线索进行区分，但在照明测试场进行训练时，它使用“亮度”线索。这是从波长辨别测量中得出的结论。在低水平的适应光下（1.5和0.2勒克斯而不是20勒克斯），L-视锥细胞类型有助于“亮度”感知，但对颜色视觉没有贡献。长波长范围内适应行为的这种差异被用于识别可能代表视网膜中“亮度”和“颜色”通道的神经节细胞。在不同水平的暗适应和明适应下细胞外记录动作光谱。
