Gravity biases in a non-human primate?
Gravity biases in a non-human primate?
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DOI：
10.1111/1467-7687.00051
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发表时间：
1999-03-01
影响因子：
3.7
通讯作者：
Santos, Laurie
中科院分区：
文献类型：
--
作者：
Hood, Bruce M.;Hauser, Marc D.;Santos, Laurie
学龄前儿童期望下落的物体沿直线运动，即使有明显的物理机制偏离物体的路径（Hood, 1995）。目前的研究旨在确定这种预期是否仅限于人类。棉顶绢毛猴（Saguinus oedipus oedipus）是一种新大陆猴，在Hood（1995）的实验任务中进行了测试，实验任务是将物体放入由不透明管连接到三个容器中的一个的烟囱中。就像人类的孩子一样，在第一次试验中，尽管排列整齐的烟囱和容器从来没有连接在一起，但它们还是明显倾向于在烟囱下面的容器中寻找食物。这些搜索错误表明，当两种灵长类动物都无法理解物体轨迹上的约束时，可能存在重力偏差。然而，与人类儿童不同的是，即使使用了反复测试和成本激励，柽柳猴通常也更有可能坚持犯错误。
Pre-school children expect falling objects to travel in a straight line even when there are clear physical mechanisms that deviate the object's path (Hood, 1995). The current study set out to determine whether this expectancy is limited to humans. Cotton-top tamarins (Saguinus oedipus oedipus), a New World monkey species, were tested on Hood's (1995) experimental task where objects are dropped down a chimney connected by an opaque tube to one of three containers. Like human children, there was a significant tendency to search in the container underneath the chimney where the food was dropped on the first trial, even though aligned chimneys and containers were never connected. These search errors suggest that there may be a gravity bias that operates when both primate species fail to understand the constraints operating on object trajectories. Unlike human children however, tamarins were generally more likely to perseverate in making errors even though repeated testing and cost incentives were used.