Qian Cheng S, Brascamp Jan W
Department of Psychology, Michigan State University;
Department of Psychology, Michigan State University; Neuroscience Program, Michigan State University.
J Vis Exp. 2017 Sep 6(127):56033. doi: 10.3791/56033.
The presentation of different stimuli to the two eyes, dichoptic presentation, is essential for studies involving 3D vision and interocular suppression. There is a growing literature on the unique experimental value of pupillary and oculomotor measures, especially for research on interocular suppression. Although obtaining eye-tracking measures would thus benefit studies that use dichoptic presentation, the hardware essential for dichoptic presentation (e.g. mirrors) often interferes with high-quality eye tracking, especially when using a video-based eye tracker. We recently described an experimental setup that combines a standard dichoptic presentation system with an infrared eye tracker by using infrared-transparent mirrors. The setup is compatible with standard monitors and eye trackers, easy to implement, and affordable (on the order of US$1,000). Relative to existing methods it has the benefits of not requiring special equipment and posing few limits on the nature and quality of the visual stimulus. Here we provide a visual guide to the construction and use of our setup.
向双眼呈现不同刺激，即双眼分视呈现，对于涉及三维视觉和双眼抑制的研究至关重要。关于瞳孔和眼球运动测量的独特实验价值，尤其是对于双眼抑制的研究，相关文献越来越多。因此，获取眼动追踪测量结果将有助于使用双眼分视呈现的研究，但是双眼分视呈现所必需的硬件（例如镜子）常常会干扰高质量的眼动追踪，尤其是在使用基于视频的眼动追踪器时。我们最近描述了一种实验装置，该装置通过使用红外透明镜将标准的双眼分视呈现系统与红外眼动追踪器相结合。该装置与标准显示器和眼动追踪器兼容，易于实施且价格实惠（约1000美元）。相对于现有方法，它具有不需要特殊设备且对视觉刺激的性质和质量限制较少的优点。在此，我们提供一份关于我们装置的构建和使用的视觉指南。
