Accuracy of head orientation perception in triadic situations: Experiment in a virtual environment

Ronald Walter Poppe, R.J. Rienks, Dirk K.J. Heylen

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    Abstract

    Research has revealed high accuracy in the perception of gaze in dyadic (sender - receiver) situations. Triadic situations differ from these in that an observer has to report where a sender is looking, not relative to himself. This is more difficult owing to the less favourable position of the observer. The effect of the position of the observer on the accuracy of the identification of the sender's looking direction is relatively unexplored. Here, we investigate this, focusing exclusively on head orientation. We used a virtual environment to ensure good stimulus control. We found a mean angular error close to 5°. A higher observer viewpoint results in more accurate identification. Similarly, a viewpoint with a smaller angle to the sender's midsagittal plane leads to an improvement in identification performance. Also, we found an effect of underestimation of the error in horizontal direction, similar to findings for dyadic situations.
    Original languageUndefined
    Article number10.1068/p5753
    Pages (from-to)971-979
    Number of pages9
    JournalPerception
    Volume36
    Issue numberLNCS4549/7
    DOIs
    Publication statusPublished - Jul 2007

    Keywords

    • Gaze
    • Head orientation
    • Tryadic situation
    • IR-61855
    • Perception
    • HMI-HF: Human Factors
    • EWI-10793
    • EC Grant Agreement nr.: FP6/506811
    • METIS-241793

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