Schaeppi U, Liverani F
Agents Actions. 1977 Sep;7(3):347-51. doi: 10.1007/BF01969567.
Following pupillary dilatation and immobilization of the dog with a cataleptic drug (l-Polamivet, Hoechst) the electroretinogram (ERG) was performed with the technique of Ganzfeld stimulation. The head of the dog was kept within a sphere of 60 cm diameter, the white inner surface of which could be indirectly illuminated with a stroboscope producing light flashes of 10 musec duration. The ERG was recorded oscillographically by means of modified contact lenses. Dogs were tested for rod and cone function with luminance curves including white, blue and red stimuli and with trains of repetitive photic stimuli. Tests were performed under dark and light adaptation. The ERG of the dark-adapted dog, an indicator for the electrical activity of the rod system, was similar with that of man with respect to configuration and other characteristics. The electrical activity of the cone system was different from that of man by having a 10-fold lower sensitivity and a reduced capability for discrimination of red versus blue or white stimuli.
用一种致僵药物（l - 多拉美维特，赫斯特公司生产）使狗的瞳孔散大并固定后，采用全视野刺激技术进行视网膜电图（ERG）检查。将狗的头部置于直径60厘米的球体内，球体的白色内表面可用频闪仪间接照明，产生持续时间为10微秒的闪光。通过改良的隐形眼镜以示波器记录ERG。用包括白色、蓝色和红色刺激的亮度曲线以及一系列重复光刺激对狗的视杆和视锥功能进行测试。测试在暗适应和明适应条件下进行。暗适应狗的ERG是视杆系统电活动的指标，在波形和其他特征方面与人的相似。视锥系统的电活动与人类不同，其灵敏度低10倍，区分红色与蓝色或白色刺激的能力降低。
