Brannon Elizabeth M, Cantlon Jessica F, Terrace Herbert S
Center for Cognitive Neuroscience and Department of Psychological and Brain Sciences, Duke University, Durham, NC 27708, USA.
J Exp Psychol Anim Behav Process. 2006 Apr;32(2):120-34. doi: 10.1037/0097-7403.32.2.120.
Two experiments examined ordinal numerical knowledge in rhesus macaques (Macaca mulatta). Experiment 1 replicated the finding (E. M. Brannon & H. S. Terrace, 2000) that monkeys trained to respond in descending numerical order (4-->3-->2-->1) did not generalize the descending rule to the novel values 5-9 in contrast to monkeys trained to respond in ascending order. Experiment 2 examined whether the failure to generalize a descending rule was due to the direction of the training sequence or to the specific values used in the training sequence. Results implicated 3 factors that characterize a monkey's numerical comparison process: Weber's law, knowledge of ordinal direction, and a comparison of each value in a test pair with the reference point established by the first value of the training sequence.
两项实验研究了恒河猴（猕猴）的序数数字知识。实验1重复了这一发现（E.M.布兰农和H.S. Terrace，2000），即与按升序训练的猴子相比，训练以降序数字顺序（4→3→2→1）做出反应的猴子并没有将降序规则推广到5 - 9的新值上。实验2研究了未能推广降序规则是由于训练序列的方向还是训练序列中使用的特定值。结果表明有三个因素表征了猴子的数字比较过程：韦伯定律、序数方向的知识以及将测试对中的每个值与由训练序列的第一个值建立的参考点进行比较。
