A study of moving base simulation motion cues utilizing washout techniqueThe present study was conducted to derive data on non-visual motion thresholds utilizing washout technique, and to develop specific threshold values for use as washout parameters. It describes the results of acceleration detection studies carried out using the NASA MSFC General Purpose Simulator which provides six degree-of-freedom cab motion. A series of experiments was performed to test the hypothesis that constant velocity visual cues might suppress non-visual deceleration sensitivity. The psychophysical method employed was the forced-choice procedure which theoretically yields a pure sensitivity measure. The MSFC General Purpose Simulator was programmed to provide velocity ramps in three axes - pitch, fore-aft translation, and vertical translation. Data were collected with and without a constant velocity visual input. Comparison of the current results with classical data suggested significantly greater sensitivity of the human observer to fore-aft accelerations than has generally been reported, sensitivity tending to depend on motion direction and sign of velocity change.
Document ID
19760049269
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Kirkpatrick, M., III (Essex Corp. Huntsville, AL, United States)
Shields, N., Jr. (Essex Corp. Huntsville, AL, United States)
Brye, R. (Essex Corp. Huntsville, Ala., United States)
Vinz, F. L. (NASA Marshall Space Flight Center Huntsville, Ala., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1975
Subject Category
Man/System Technology And Life Support
Meeting Information
Meeting: Human factors in our expanding technology