Donders Institute for Brain, Cognition and Behaviour, Department of Biophysisc, Radboud University, The Netherlands.
Swammerdam Institute for Life Sciences, University of Amsterdam, The Netherlands.
Perception. 2020 Oct;49(10):1101-1114. doi: 10.1177/0301006620952058. Epub 2020 Sep 9.
When an object is partially occluded, the different parts of the object have to be perceptually coupled. Cues that can be used for perceptual coupling are, for instance, depth ordering and visual motion information. In subjects with impaired stereovision, the brain is less able to use stereoscopic depth cues, making them more reliant on other cues. Therefore, our hypothesis is that stereovision-impaired subjects have stronger motion coupling than stereoscopic subjects. We compared perceptual coupling in 8 stereoscopic and 10 stereovision-impaired subjects, using random moving dot patterns that defined an ambiguous rotating cylinder and a coaxially presented nonambiguous half cylinder. Our results show that, whereas stereoscopic subjects exhibit significant coupling in the far plane, stereovision-impaired subjects show no coupling and under our conditions also no stronger motion coupling than stereoscopic subjects.
当一个物体被部分遮挡时，物体的不同部分必须被感知耦合。可用于感知耦合的线索有，例如，深度顺序和视觉运动信息。在立体视觉受损的受试者中，大脑不太能够使用立体深度线索，这使得他们更依赖其他线索。因此，我们的假设是，立体视觉受损的受试者比具有立体效果的受试者具有更强的运动耦合。我们比较了 8 名具有立体视觉和 10 名立体视觉受损的受试者的感知耦合，使用随机移动点模式定义了一个模糊的旋转圆柱体和同轴呈现的非模糊半圆柱体。我们的结果表明，虽然立体视觉受试者在远平面表现出明显的耦合，但立体视觉受损的受试者没有表现出耦合，在我们的条件下，他们的运动耦合也不比立体视觉受试者强。
