Marzi C A, Antonucci G, Pizzamiglio L, Santillo C
Vision Res. 1986;26(3):477-83. doi: 10.1016/0042-6989(86)90190-2.
Apparent displacement of an edge from the subjective visual vertical is typically induced by the simultaneous inspection of a large rotating textured background. In the present series of experiments we have tested the binocular integration of such an effect in normal and stereoblind observers in whom inspection of the rotating background and vision of the vertical edge are presented to different eyes. In normal subjects there was no difference between the binocular and the dichoptic viewing condition while in stereoblind subjects there was a clearcut decrease in the strength of the tilt effect under dichoptic conditions. A residual tilt effect, however, was still present in the latter group under dichoptic conditions and this shows that binocular interactions related to visual tilt can be dissociated from those required for stereopsis.
通常，通过同时观察一个大型旋转纹理背景会引起边缘相对于主观视觉垂直方向的明显位移。在本系列实验中，我们测试了正常观察者和立体盲观察者中这种效应的双眼整合情况，在这些观察者中，旋转背景的观察和垂直边缘的视觉分别呈现给不同的眼睛。在正常受试者中，双眼观察条件和单眼分别观察条件之间没有差异，而在立体盲受试者中，单眼分别观察条件下倾斜效应的强度明显降低。然而，在单眼分别观察条件下，后一组受试者仍存在残余的倾斜效应，这表明与视觉倾斜相关的双眼相互作用可以与立体视觉所需的相互作用分离。
