INFANT PERCEPTION OF OBJECT UNITY FROM TRANSLATORY MOTION IN DEPTH AND VERTICAL TRANSLATION
INFANT PERCEPTION OF OBJECT UNITY FROM TRANSLATORY MOTION IN DEPTH AND VERTICAL TRANSLATION
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DOI：
10.1111/j.1467-8624.1986.tb00008.x
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发表时间：
1986-02-01
影响因子：
4.6
通讯作者：
SHORT, KR
中科院分区：
文献类型：
--
作者：
KELLMAN, PJ;SPELKE, ES;SHORT, KR
先前的研究表明，4个月大的婴儿感知到一个中心被遮挡的物体的统一性时，其可见的两端共享一个共同的横向平移空间。目前的工作调查类的运动关系，可以指定对象统一的婴儿，特别是，问它是否包括所有刚性的翻译。3个实验测试了以前没有研究过的2个翻译轴的信息量：深度翻译和垂直翻译。这些运动也允许评估某些解释以前的结果，调用特定的感官后果的横向运动，而不是感知运动，作为潜在的感知统一。实验1提供的证据表明，深度上的小范围平移指定了物体的统一性，但仅适用于检测到运动的婴儿亚组。实验2使用了更大的位移深度，并发现了明确的证据，知觉对象的统一性。实验3表明，垂直平移，其中部分隐藏的对象的2个可见区域经历不同的变化，也指定对象的统一性给婴儿。这些结果表明，婴儿的知觉对象的统一性取决于知觉连贯性的运动，无论如何指定，和类的信息运动包括所有刚性的翻译。
Previous research indicated that 4-month-old infants perceive the unity of a center-occluded object when its visible ends share a common lateral translation in space. The present work investigated the class of motion relationships that can specify object unity to infants, specifically, asking whether it includes all rigid translations. 3 experiments tested the informativeness of 2 axes of translation not previously studied: translation in depth and vertical translation. These motions also allowed assessment of certain interpretations of previous results that invoke specific sensory consequences of lateral movement, rather than perceived motion, as underlying perceived unity. Experiment 1 provided evidence that a small extent of translation in depth specified the unity of an object, but only to the subgroup of infants who detected the motion. Experiment 2 used a greater displacement in depth and found clear evidence for perception of object unity. Experiment 3 indicated that vertical translation, in which the 2 visible areas of the partly hidden object undergo dissimilar changes, also specifies object unity to infants. These results suggest that infants'' perception of object unity depends on perceived coherence of motion, no matter how specified, and that the class of informative motions includes all rigid translations.