Schnitzer S B, Beane M E
Dev Psychobiol. 1976 Mar;9(2):167-74. doi: 10.1002/dev.420090209.
C3H/HeJ male mice, an inbred strain showing retinal degeneration (rd), and normal-eyed DBA/IJ male mice were studied in a task requiring discrimination of horizontally and vertically oriented rectangles. The apparatus was modified Yerkes discrimination apparatus. The mice were given 30 days of discrimination training, 10 trials/day, after which 10 more trails were given on the 31st day with positive and negative cues reversed. Both strains showed a highly significant decrease in errors during acquisition, the rd strain making significantly fewer errors than the DBA/IJ animals. Reversal of the cues brought about a sharp increase in percentage of errors.
对C3H/HeJ雄性小鼠（一种表现出视网膜变性（rd）的近交系）和正常眼睛的DBA/IJ雄性小鼠进行了一项任务研究，该任务要求区分水平和垂直方向的矩形。实验装置为改良的耶基斯辨别装置。小鼠接受了30天的辨别训练，每天10次试验，之后在第31天又进行了10次试验，此时正性和负性线索颠倒。两种品系在习得过程中错误率均显著降低，rd品系的错误明显少于DBA/IJ动物。线索颠倒导致错误百分比急剧增加。
