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Fig. 5 | Journal of NeuroEngineering and Rehabilitation

Fig. 5

From: A geometric method for computing ocular kinematics and classifying gaze events using monocular remote eye tracking in a robotic environment

Fig. 5

The three experimental tasks used in the current study. a This Figure shows an Experiment One trial in progress. This task was a bimanual task in which participants were instructed to hit targets (circles) and avoid hitting distractors (ellipses). The green cross hair indicates gaze POR. b The workspace for the Trail Making Test (Experiment Two). TMT is a unimanual task in which the goal was to reach all the numbers/letters in the correct order in the shortest possible time. The trial shown is a TMT-A trial and the participant has successfully traced numbers 1–16. c The workspace for the Object Hit and Avoid task (Experiment Three) is shown. This was a bimanual task in which participants used two virtual paddles to intercept and hit targets that are approaching them. For this trial, circles and vertical rectangles are the target shapes and all other shapes are distractors. At this moment case, the subject is about to hit the circle and is already looking ahead at the vertical rectangle

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