DISORIENTATION TRAINING IN NON-MOTION BASED SIMULATOR

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Authors
  1. Howard, I.P.
  2. Cheung, B.
  3. Groen, E.
  4. Mellinger, M.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN);Institute for Space and Terrestrial Science, North York ONT (CAN)
Abstract
Three experiments were performed to investigate factors which lead to illusory self tilt in flight simulators. Visual factors were: motion as opposed to static tilt of the visual surroundings, the presence or absence of visual features which indicate up and down (visual polarity), and the presence or absence of a stationary visual reference frame. Non-visual factors are stimulation of the vestibular system and particularly the otolith organs provided by a motion base. In Experiment 1 we measured the magnitude of illusory self tilt produced by exposure to a real visual environment with the idea of developing a scale to assess the effectiveness of visual displays in flight simulators. In an earlier study subjects were placed inside a sphere lined with dots which gave no visual indication of up and down. When the sphere was rotated about a horizontal axis, subjects experienced illustory self rotation but only limited illusory self tilt. The new visual environment was a room filled with visual features such as adoor, window, and a great variety of objects which indicated up and down (visual polarity). TRUNCATED
Keywords
Disorientation;Illusory body tilt;Motion washout;Virtual reality
Report Number
DCIEM-97-CR-09 — Contractor Report
Date of publication
28 Dec 1996
Number of Pages
54
DSTKIM No
97-03413
CANDIS No
503485
Format(s):
Hardcopy;Document Image stored on Optical Disk

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