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Visual spatial disorientation: revisiting the black hole illusion.

Randall W Gibb1

  • 1Industrial Engineering Department, Arizona State University, Tempe, AZ, USA. randall.gibb@usafa.af.mil

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The black-hole illusion (BHI) causes pilots to misjudge their descent, leading to dangerous landings. Training pilots on this visual spatial disorientation (SD) is crucial for aviation safety.

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Area of Science:

  • Aviation Psychology
  • Human Factors in Aviation
  • Visual Perception

Background:

  • Spatial disorientation (SD) is a known factor in aviation accidents.
  • The black-hole illusion (BHI) is a specific visual SD occurring during night landings with limited visual cues.
  • BHI can lead to glide path overestimation (GPO), resulting in unsafe descent profiles.

Purpose of the Study:

  • To explore the origins and contributing factors of the black-hole illusion (BHI).
  • To review aviation mishaps associated with visual spatial disorientation.
  • To emphasize the need for pilot training on BHI and visual SD.

Main Methods:

  • Literature review of BHI origins and contributing factors.
  • Analysis of pilot misperception leading to GPO.
  • Examination of aviation mishaps linked to visual SD.

Main Results:

  • Nine potential reasons for pilot misperception leading to GPO were identified.
  • Mishaps involving visual SD highlight perceptual limitations rather than pilot error.
  • Pilot confidence in visual capabilities often exceeds actual perceptual abilities in low-cue environments.

Conclusions:

  • The black-hole illusion (BHI) is a significant perceptual limitation for pilots during night approaches.
  • Pilot training must incorporate visual SD scenarios, including BHI, to mitigate landing accidents.
  • Further research is needed to understand the conditions under which BHI occurs.