I know you are not looking at me:: capuchin monkeys' (Cebus apella) sensitivity to human attentional states
I know you are not looking at me:: capuchin monkeys' (Cebus apella) sensitivity to human attentional states
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DOI：
10.1007/s10071-006-0049-0
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发表时间：
2007-04-01
期刊：
影响因子：
2.7
通讯作者：
Fujita, Kazuo
中科院分区：
文献类型：
--
作者：
Hattori, Yuko;Kuroshima, Hika;Fujita, Kazuo
目前的研究询问卷尾猴是否识别人类的注意力状态。猴子向实验者索要食物，伸出一只手臂（指向）两个透明杯子中有诱饵的一个。在常规试验中，实验者在指向后立即将食物给猴子，但在随机插入的测试试验中，她忽略了5秒的指向，在此期间，她表现出不同的注意力状态。在实验1中，当实验者看着猴子时，猴子们看着实验者的脸的时间比她看着天花板的时间长;在实验2中，当她把头放在两个杯子中间时，眼睛睁开的时间比她闭着眼睛的时间长。然而，猴子在这些条件下没有表现出差异指向。这些结果表明，卷尾猴是敏感的眼睛的方向，但这种敏感性不会导致在实验室实验中训练的差异指向。此外，据我们所知，这是第一个明确的行为证据，表明非人类灵长类动物在要求食物的任务中注意到眼睛的微妙状态。
The present study asked whether capuchin monkeys recognize human attentional states. The monkeys requested food from the experimenter by extending an arm (pointing) toward the baited one of two transparent cups. On regular trials the experimenter gave the food immediately to the monkeys upon pointing but on randomly inserted test trials she ignored the pointing for 5 s during which she displayed different attentional states. The monkeys looked at the experimenter's face longer when she looked at the monkeys than when she looked at the ceiling in Experiment 1, and longer when she oriented her head midway between the two cups with eyes open than when she did so with eyes closed in Experiment 2. However, the monkeys showed no differential pointing in these conditions. These results suggest that capuchins are sensitive to eye direction but this sensitivity does not lead to differential pointing trained in laboratory experiments. Furthermore, to our knowledge, this is the first firm behavioral evidence that non-human primates attend to the subtle states of eyes in a food requesting task.