The impact of visual noise on spatial orientationThe effect of noise in the visual environment on spatial orientation was investigated experimentally using postural stability as an objective measure. Noise in the displays was produced by randomly shifting the phase lag of the three-dimensional motion function for each individual point within the display. Greater postural sway was induced by displays containing no noise in the global optical flow pattern than displays containing noise, suggesting that spatial orientation is strongly dependent on global optic flow information in the visual field. To avoid pilot disorientation in some flight maneuvers, it is recommended that visual aids specifying global optic flow information be included in aircraft for flight environments with deficient global optic flow information.
Document ID
19930052232
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Dyre, Brian P. (NASA Ames Research Center Moffett Field, CA, United States)
Andersen, George J. (Illinois Univ. Urbana, United States)