Rhesus monkeys (Macaca mulatta) map number onto space.

Rhesus monkeys (Macaca mulatta) map number onto space.
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DOI:
10.1016/j.cognition.2014.03.011
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发表时间:
2014-07
期刊:
影响因子:
3.4
通讯作者:
Brannon EM
Brannon EM
中科院分区:
心理学2区
文献类型:
--
作者:
Drucker CB;Brannon EM

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人类将数字映射到空间。然而,这种联系的起源,特别是它在多大程度上依赖于文化经验,并没有完全理解。在这里,我们提供了非人类灵长类动物的数字空间映射的第一个演示。我们训练了四只成年雄性恒河猴(Macaca mulatta)从一个五元素垂直数组中选择底部的第四个位置。猴子通过改变垂直阵列的外观、位置和间距来保持选择第四个位置的偏好。接下来,我们通过测试猴子对旋转90度成水平线的相同五元素刺激阵列的反应来询问它们是否表现出空间定向的数字映射。在这些水平探针试验中,猴子优先选择从左数第四个位置,而不是从右数第四个位置。我们的研究结果表明,恒河猴将数字映射到空间上,这表明人类认知中数字与空间之间的联系并不纯粹是文化经验的结果,而是有着深刻的进化根源。
Humans map number onto space. However, the origins of this association, and particularly the degree to which it depends upon cultural experience, are not fully understood. Here we provide the first demonstration of a number-space mapping in a non-human primate. We trained four adult male rhesus macaques (Macaca mulatta) to select the fourth position from the bottom of a five-element vertical array. Monkeys maintained a preference to choose the fourth position through changes in the appearance, location, and spacing of the vertical array. We next asked whether monkeys show a spatially-oriented number mapping by testing their responses to the same five-element stimulus array rotated ninety degrees into a horizontal line. In these horizontal probe trials, monkeys preferentially selected the fourth position from the left, but not the fourth position from the right. Our results indicate that rhesus macaques map number onto space, suggesting that the association between number and space in human cognition is not purely a result of cultural experience and instead has deep evolutionary roots.
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