Bulatov Aleksandr, Mickienė Lina, Bulatova Natalja, Bielevičius Arūnas
Institute of Biological Systems and Genetics Research, Lithuanian University of Health Sciences, Kaunas, Lithuania,
Acta Neurobiol Exp (Wars). 2013;73(3):417-29. doi: 10.55782/ane-2013-1948.
In the present communication, a possible role of perceptual displacements of stimulus elements in the occurrence of visual illusions of extent has been considered. In psychophysical experiments with a single set of Müller-Lyer wings, subjects were asked to place an imaginary reference rectangle into a position that made the apex of the wings appear to be at the rectangle center. Three different stimulus parameters (the length, internal angle, or tilt angle of the wings) were used as independent variables in different series of experiments. It was demonstrated that the magnitude of perceptual displacements of stimulus terminator is commensurate with that of illusions of extent obtained in our previous studies of full versions of illusory figures. Good correspondence between the experimental data and the predictions of our computational model of automatic centroid extraction strongly supported the suggestion that the effects of centroid extraction are powerful enough to be considered as one of the main causes of illusions of extent of the Müller-Lyer type.
在本论文中，我们探讨了刺激元素的感知位移在视错觉产生过程中可能扮演的角色。在使用单组缪勒-莱尔图形的心理物理学实验中，要求受试者将一个假想的参考矩形放置到一个位置，使得图形的顶点看起来位于矩形中心。在不同系列的实验中，使用了三个不同的刺激参数（图形的长度、内角或倾斜角）作为自变量。结果表明，刺激终止点的感知位移大小与我们之前对完整错觉图形研究中获得的长度错觉大小相当。实验数据与我们自动质心提取计算模型的预测之间的良好对应，有力地支持了这样一种观点，即质心提取的效应强大到足以被视为缪勒-莱尔型长度错觉的主要原因之一。
