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Related Experiment Videos

Controlling visually induced self-motion perception: effect of overlapping dynamic visual noise.

Hiroyuki Ito1, Hiroshi Takano

  • 1Department of Visual Communication Design, Faculty of Design, Kyushu University, 4-9-1 Shiobaru, Minami-ku, Fukuoka 815-8540, Japan. ito@design.kyushu-u.ac.jp

Journal of Physiological Anthropology and Applied Human Science
|December 16, 2004
PubMed
Summary

Dynamic visual noise completely blocks visually induced self-motion perception (vection) when presented with optical flow. This finding suggests noise can suppress vection, potentially reducing simulator sickness in 3-D displays.

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Area of Science:

  • Visual perception
  • Human-computer interaction
  • Neuroscience

Background:

  • Visually induced self-motion perception, or vection, is crucial for immersive experiences.
  • Dynamic visual noise can influence visual processing and spatial awareness.
  • Understanding vection suppression is key for designing effective virtual reality and simulation systems.

Purpose of the Study:

  • To investigate the impact of overlapping dynamic visual noise on vection induced by optical flow.
  • To determine if dynamic visual noise can suppress vection, similar to static patterns.
  • To explore the implications of vection suppression for 3-D display applications and simulator sickness.

Main Methods:

  • Participants viewed upward or downward optical flow patterns.

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  • Dynamic visual noise, composed of sparse random dots, was overlaid on the flow.
  • The binocular disparity of the noise plane was manipulated to vary its perceived depth relative to the flow plane.

    • Main Results:

    • Vection was completely abolished when dynamic visual noise was presented on the same plane as the optical flow.
    • Vection was also completely abolished when the noise was presented on a plane farther than the optical flow plane.
    • Dynamic visual noise demonstrated a vection suppression effect comparable to static patterns.

    Conclusions:

    • Dynamic visual noise effectively suppresses visually induced self-motion perception (vection).
    • This suppression effect is consistent with that observed for static visual patterns.
    • Dynamic visual noise may serve as a useful tool for mitigating vection and potentially reducing simulator sickness in 3-D display technologies.