Comparative study of visual information processing in humans and chimpanzees.

本研究旨在阐明人类和黑猩猩在知觉和认知过程中的相似性和差异。研究内容如下：数字知觉：16岁雌性黑猩猩艾，学习标记CRT屏幕上的点的数目，并要求在另一个CRT屏幕上选择一个相应的阿拉伯数字，她学会标记1到10，当数字是随机呈现时，她的正确率达到85%。记忆过程：黑猩猩还学会了记住6以下的数字串。这个任务就是所谓的样本匹配。她可以在一个字符串中重现6个数字，在那里她自发地发展了她最喜欢的顺序，即从中间到右边再回到左边。她还学会了两个数字，并在短暂的延迟间隔后复制。汉字的模式感知：黑猩猩学会了对汉字样本进行匹配。40个汉字作为样本。她对这40个字符的识别率约为80%，

The present study aimed to cralify the similarity and difference between humans and chimpanzees in perceptual and cognitive processes. The topics were as follows.NUMBER PERCEPTION : A chimpanzee named Ai, 16 years old female, learned to label the number of dots presented on a CRT screen and asked to choose a crresponding Arabic numeral on the other CRT screen.She learned to label one through ten, and her accuracy of the performance reached to 85% correct when the numbers were presented randomly. It means that the chimpanzee showed a rudimental ability of processing the numbers.MEMORY PROCESS : The chimpanzee also learned to remember the strings of numerals up to six. The task is so-called matching to sample. She can reproduce 6 numerals in a string, where she spontaneously developed her favorite order of reproducing the string from center to right then back to left. She also learned to 2 numerals and reproduce then after short period of delay interval.PATTERN PERCEPTION OF KANJI : The chimpanzee learnd to do matching to sample of Kanji-characters. 40 Kanji characters were used as samples. She discriminated those 40 characters at about 80%