Perception of kinetic illusory contours by two-month-old infants
Perception of kinetic illusory contours by two-month-old infants
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DOI：
10.1111/1467-8624.00389
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发表时间：
2002-01-01
影响因子：
4.6
通讯作者：
Mason, U
中科院分区：
文献类型：
--
作者：
Johnson, SP;Mason, U
通过稀疏的随机点显示，研究了2个月大的婴儿对动态虚幻轮廓的感知，这些显示描绘了背景下的虚幻形状。在实验1中，24名婴儿对背景纹理的增加和删除以及相对运动所指定的形状表现出习惯，对亮度定义的熟悉形状和新形状表现出新颖性偏好。随后的实验探索了孤立的动力学线索。在实验2 （n = 24）中，去除相对运动信息，只留下纹理和亮度线索的增加和删除，在实验3 （n = 24）中，只留下相对运动信息。在这两个实验中，实验1的新颖性偏好得到了重复。来自控制条件（n = 12）的结果减轻了对任何一种测试形状的固有偏好的可能性。这些发现揭示了仅从动态信息感知形状的早期能力，并提出了一种面向时空边界形成的机制，该机制在出生后不久就开始发挥作用。讨论了边缘发展理论和运动判别理论。
Perception of kinetic illusory contours by 2-month-old infants was explored with sparse random-dot displays depicting an illusory shape against a background. In Experiment 1, 24 infants were habituated to a shape specified by accretion and deletion of background texture and relative motion, and exhibited a novelty preference when presented with luminance-defined familiar and novel shapes. Subsequent experiments explored kinetic cues in isolation. In Experiment 2 (n = 24), relative motion information was removed, leaving accretion and deletion of texture and luminance cues, and in Experiment 3 (it = 24), only relative motion information was available. In both these experiments the novelty preference obtained in Experiment I was replicated. Results from a control condition (n = 12) mitigated against the likelihood of an inherent preference for either of the test shapes. These findings reveal an early capacity to perceive shape solely from kinetic information, and suggest a mechanism geared toward spatiotemporal boundary formation that is functional shortly after birth. Theories of development of edge and motion discrimination are discussed.