【摘要】 两只恒河猴在实验条件下以正多边形和不规则多边形的边数为刺激实体进行数量辨别训练,以最后测得恒河猴对多边形边(角)数识别的极限。实验结果表明,恒河猴在多边形边数相差为1的条件下,其辨别上限为7:8。这与以前以白色卡片上黑色圆点为刺激实体所得到的实验结果是一致的。更多还原

【Abstract】 Two monkeys were trained successfully to judge the numerousness of sides of polygons. In experiment 1, with the number of sides or angles of regularpolygons as numerousness discriminada,the best performance of the first mon-key was to meet the criterion (two successive sessions of 80% or more cor-rect) on the task 7 vs. 8 sides, the 2nd best was on the 6 vs. 7 task. Inexperiment 2, with the number of sides or angles of irregular polygons ascues, the best performance of the first monkey was on the 6 vs. 7 task, the2nd best was on the 5 vs 6 task更多还原