How to Build a Dichoptic Presentation System That Includes an Eye Tracker

Cheng S. Qian, Jan W. Brascamp

Research output: Contribution to journalArticle

Abstract

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 mirrors1. 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.
Original languageEnglish
Article number e56033
JournalJournal of Visualized Experiments
Volume127
DOIs
Publication statusPublished - 6 Sep 2017

Bibliographical note

Copyright © 2017 Journal of Visualized Experiments

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