Interaction Between Perceived Self-Motion and Object-Motion Impairs Vehicle Guidance

DOI Web Site 1 Citations
  • Thomas Probst
    Neurological Clinic Klinikum Grosshadern, University of Munich, 8000 Munich, Federal Republic of Germany
  • Siegbert Krafczyk
    Neurological Clinic Klinikum Grosshadern, University of Munich, 8000 Munich, Federal Republic of Germany
  • Thomas Brandt
    Neurological Clinic Klinikum Grosshadern, University of Munich, 8000 Munich, Federal Republic of Germany
  • Eugene R. Wist
    Department of Psychology, University of Konstanz, 7750 Konstanz, Federal Republic of Germany

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Description

<jats:p>When one is riding in a vehicle, perceptual thresholds for motion of objects are significantly elevated above those determined under corresponding but simulated conditions in the laboratory without concurrent self-motion perception. Authorities on road traffic accidents should thus consider an additional perceptual time of at least 300 milliseconds for detecting critical changes in headway beyond the usual reaction time. Detection times thus corrected consequently lead to an alteration of our conception of safe intervehicle distances in a convoy. This elevation of thresholds for object-motion during self-motion, with its consequences for visual control of vehicle guidance, can be seen as a disadvantageous side effect of an otherwise beneficial space-constancy mechanism, which provides us with a stable world during locomotion.</jats:p>

Journal

  • Science

    Science 225 (4661), 536-538, 1984-08-03

    American Association for the Advancement of Science (AAAS)

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