Why and how the vergence eye movement influences the space perception of visual object?

在聚散角为唯一有用线索的条件下，对三维空间中视觉物体的大小和距离知觉进行了实验研究。作为实验设备，使用了3D图像投影系统和大（2.5m×2.5m）透明屏幕。受试者通过液晶双目快门观看屏幕上的视觉对象。屏幕上的右眼和左眼的图形随着双眼快门的频率交替切换。通过CG计算机改变图形间的分离，以呈现距离刺激。受试者操纵操纵杆调节测试刺激的大小或距离，以重现记忆的参考图形的大小或距离。在第一个实验中，受试者记忆参考点的大小，然后由受试者重新调节随后呈现的不同大小和不同距离的测试点，以符合记忆。在第二个实验中，受试者通过操纵杆调节测试刺激的大小或距离，以再现记忆的参考图形的大小或距离。在第三个实验中，受试者通过操纵杆调节测试刺激的大小或距离，以再现记忆的参考图形的大小或距离。在第四个实验中，受试者通过操纵杆调节测试刺激的大小或距离，以再现记忆的参考图形的大小或距离。在第五个实验中，受试者通过操纵杆调节测试刺激的大小或距离，以再现记忆的参考图形的大小或距离。 ...更多信息 zed大小或距离。大部分被试的尺寸再现准确性较差，少数被试的尺寸再现准确性明显优于其他被试。远距离繁殖的准确性也表现出很大的个体差异。距离繁殖精度的个体变异与大小繁殖精度的个体变异高度相关。这一事实表明，神经网络负责的大小知觉是基于距离线索，通过眼睛的聚散运动。在第二个实验中，运动定义的边缘物体的大小再现的准确性进行了研究。与普通物体的精度没有明显差异。运动定义的边缘的尺寸再现的精度被证明是高度相关的距离再现。这一发现表明，大脑中的大小知觉神经网络在处理普通物体和运动定义物体的形状信息后，也会处理它们的信息。少

Size and distance perception of visual object in 3D space was experimentally investigated on human subjects under the situation where vergence angle was the only useful cue for the perception. As an experimental equipment, 3D image projector system and a large (2.5m×2.5m) transparent screen was used. Subjects looked at a visual object on the screen through a liquid crystal binocular shutter. Figures for the right eye and left eye on the screen were switched alternately with the frequency of the binocular shutter. Inter figure separation was changed by a CG computer to present a distance stimulus. The subject manipulated a joy stick to adjust either the size or the distance of a test stimulus in order to reproduce the size or the distance of a memorized reference figure.In the first experiment, the size of the reference dot was memorized by a subject, and then a test dot with a different size and a different distance subsequently presented was readjusted by the subject to fit the memori … More zed size or distance. Accuracy of size reproduction proved to be poor in most of the subjects, while in the small number of the subjects the accuracy of size reproduction was obviously better than the others. Accuracy of distance reproduction also showed wide individual variation. Individual variation of distance reproduction accuracy was highly correlated to that of size reproduction. The fact suggests that the neural network responsible to the size perception is based on the distance cue obtained through vergence eye movement.Accuracy of size reproduction of motion defined edge object was investigated in the second experiment. No obvious difference from the accuracy of ordinary object was observed. Accuracy of size reproduction of motion defined edge proved to be highly correlated to that of distance reproduction. The finding suggests that size perception neural network in the brain process information of both ordinary object and motion defined object after their shape being processed. Less