Interactions between visual system of space and vergence system

本研究的目的是从理论和实验上阐明空间视觉系统和运动系统，特别是集中系统之间的关系。有两个子目的：(1)澄清处理物体的相对距离、绝对距离和大小的视觉系统与聚焦系统之间的关系；(2)根据第一个目的的结果，从理论上阐明视觉系统的“功能原理”。从1998年到2000年进行的几个实验表明：(A)视觉系统在双眼视轴平行以外的发散状态下校准感知深度、感知大小和感知距离；(B)视觉系统利用绝对距离信息校准由双眼视网膜视差、视差梯度和运动视差获得的相对深度；因此，双眼立体视和单眼立体视中的感知深度随着感知的自我中心距离的增加而增加。我们将这个函数命名为深度定标原理。我们提出的第二个原理是“循环感知原理”，它指出视觉系统整合了来自两只眼睛的视觉输入，以在任何用双眼观察的情况下做出单一的感知。

The aim of this study was to clarify theoretically and experimentally the relationships between visual system of space and motor system, specifically the vergence system. There were two sub-purpose : (1) to clarify the relationships between the visual system to process relative distance, absolute distance, and size of objects and the vergence system, and (2) based on the results of the first purpose, to clarify theoretically "functional principles" of the visual system. The several experiments conducted from 1998 to 2000 indicated that : (a) the visual system calibrates perceived depth, perceived size, and perceived distance in divergence states beyond parallelism of visual axes of both eyes, (b) the visual system calibrates relative depth obtained from binocular retinal disparity, disparity gradient, and motion parallax, using absolute distance information ; consequently, the perceived depth in binocular stereopsis and monocular stereopsis increases as the perceived egocentric distance increases. We named this function the principle of depth scaling. The second principle we made is "cyclopean percept principle", which states that the visual system integrates visual inputs from both eyes to make single percept in any situations viewed binocularly.