Cadusseau J, Galand G
Vision Res. 1982;22(7):835-8. doi: 10.1016/0042-6989(82)90016-5.
Unit responses susceptible to light stimulation of a small area on the frog's head were recorded in the deep encephalon of blinded specimens of Rana esculenta. The responses consisted of a spike discharge upon illumination. Using a threshold criterion the dark adaptation curves showed two parts, separated by a kink, the final dark threshold being complete after 20-30 min in darkness. Using a threshold criterion the spectral sensitivity curves under dark adapted conditions were broad with a peak at 548 nm. The dark adapted intensity threshold for a stimulus of 548 nm ranged between 0.15-1.4 microW/cm2.
在食用蛙失明标本的深部脑区记录了对蛙头部小区域光刺激敏感的单位反应。这些反应包括光照时的脉冲放电。采用阈值标准，暗适应曲线显示出两个部分，由一个拐点分开，在黑暗中20 - 30分钟后最终暗阈值达到稳定。采用阈值标准，暗适应条件下的光谱灵敏度曲线较宽，峰值在548纳米处。548纳米刺激的暗适应强度阈值在0.15 - 1.4微瓦/平方厘米之间。
