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      The human pupil and the use of video-based eyetrackers.

      Vision Research
      Diagnosis, Computer-Assisted, Eye Movement Measurements, Eye Movements, Humans, Ophthalmology, methods, Pupil, physiology

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          Abstract

          Video-based devices for measuring gaze direction are widespread. However, there is a built-in imprecision in such devices in the event that pupil diameter changes during the experiments. Data are presented to demonstrate this effect. The possibility of correcting eye-position records for the imprecision is discussed and preliminary examples of such correction are presented. Copyright 2010 Elsevier Ltd. All rights reserved.

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          Author and article information

          Journal
          20638401
          2948855
          10.1016/j.visres.2010.07.008

          Chemistry
          Diagnosis, Computer-Assisted,Eye Movement Measurements,Eye Movements,Humans,Ophthalmology,methods,Pupil,physiology

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