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Acceleration onset cueing is a term for the cueing principle used by a simulator motion platform.
Motion platforms used in "Level D" Full flight simulators and equivalent military simulators have six jacks that can move the replica cockpit that is mounted on the platform in any of the six degrees of freedom that can be experienced by any body free to move in space. These are the three rotations Pitch, Roll and Yaw, and three linear movements Heave , Sway and Surge. The jack layout used is generally that of the so-called Stewart platform, shown in a moving picture on the left and on which the simulator cabin will be mounted.
Acceleration onset cueing works in three phases:
The various human body motion-sensors react to accelerations rather than steady-state motions and have thresholds below which they do not transmit signals to the brain. Furthermore, impulses from the set of body motion sensors are processed by the brain in a timescale of milliseconds compared to longer time intervals for visual cues of the Outside World to be registered by the brain. The body motion-sensors include the inner-ear sensors, , the muscle-and joint sensors, and sensors that register movements and pressures on body parts such as arms, legs and buttocks.