A reexamination of the size-weight illusion induced by visual size cues
A reexamination of the size-weight illusion induced by visual size cues
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DOI：
10.1007/s00221-006-0803-1
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发表时间：
2007-05-01
影响因子：
2
通讯作者：
Faust, Paul H.
中科院分区：
文献类型：
--
作者：
Kawai, Satoru;Henigman, Frank;Faust, Paul H.
本研究旨在探讨由视觉尺寸引起的尺寸-重量错觉是一种基于感觉的错觉还是基于认知的错觉。一个计算机增强的环境被用来操纵目标对象的视觉尺寸信息独立于他们的触觉信息。两个相同质量（30.0 g）和大小（3.0 x 3.0 x 3.0 cm）的物理立方体通过连接到小的可抓握环的电线平行悬挂，以便在升降机之间保持触觉获得的信息恒定。受试者不是直接看到每个物理立方体，而是看到一个立方体的3D图形，该立方体具有精确叠加在每个物理立方体上的电线和环。17名受试者通过抓住附加的环，一个接一个地垂直举起这些增强立方体，然后报告他们对立方体重量的感知。对于每次比较，比较立方体的图形大小伪随机地从1.0 x 1.0 x 1.0变化到9.0 x 9.0 x 9.0 cm，而标准立方体的图形大小保持恒定（5.0 x 5.0 x 5.0 cm）。结果表明，大小-重量错觉经常和系统地发生的所有科目，当比较立方体是相对小于标准立方体，它被认为是更重，反之亦然。随着标准立方体和比较立方体之间的大小差异增加，更多的受试者经历了错觉，反之亦然。随诊结果显示，尺寸-重量错觉的发生与个体辨别重量的敏感性有显著相关，但与辨别视觉尺寸的敏感性无显著相关。结果表明，在增强的环境中，只有视觉尺寸线索引起的大小重量错觉是基于感官的，并取决于个人的综合感知的基础上多模态的感官信息。
The size-weight illusion induced by visually perceived sizes was reexamined to investigate whether this illusion is a sensory based or cognitive-based phenomenon. A computer-augmented environment was utilized to manipulate visual size information of target objects independently of their haptic information. Two physical cubes of equal mass (30.0 g) and size (3.0 x 3.0 x 3.0 cm) were suspended in parallel by wires attached to small graspable rings, in order to keep haptically obtained information constant between lifts. Instead of directly seeing each physical cube, subjects viewed 3D graphics of a cube with a wire and a ring that were precisely superimposed onto each physical cube. Seventeen subjects vertically lifted these augmented cubes, one after the other, by grasping the attached rings, and then reported their perception of cube heaviness. The graphical size of a comparison cube pseudo randomly varied for every comparison from 1.0 x 1.0 x 1.0 to 9.0 x 9.0 x 9.0 cm, while that of a standard cube remained constant (5.0 x 5.0 x 5.0 cm). Results indicated that the size-weight illusion frequently and systematically occurred for all the subjects such that when the comparison cube was relatively smaller than the standard cube, it was perceived to be heavier, and vice versa. As the size difference increased between the standard cube and the comparison cube, more subjects experienced the illusion, and vice versa. Follow-up tests showed occurrence of the size-weight illusion was significantly correlated with subject's sensitivity to discriminate weight, but not with sensitivity to discriminate visual size. Results suggest that the size-weight illusion induced by only visual size cues in an augmented environment is sensory based, and depends on an individual's integrated perception based on multimodal sensory information.