Demonstration of the System, Setup and First Question (VIDEO)
Caption
This is a demonstration of the system, setup, and first question. Top left: system as viewed from the outside, the user watches a computer screen, which is visible at the right end of the picture. Top right: view of stimulus presented on this screen. Bottom left: online analysis of pupil trace. Bottom right: operator screen, footage of the pupil (note that this video can be slightly lagging compared to the rest of the video for technical reasons). Audio track: question read out by the operator ("Is you name Josef?"), 5 s later the system reads out the first response option ("non" -- no), another 5 s later the system reads out the second response option ("oui" -- yes, which is correct in this case). Note that while the current system uses a head-mounted eye-tracker (the EyeSeeCam) for practical reasons, in principle any camera will do.
Credit
<i>Current Biology</i>, Stoll et al.
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