Experimental setup.

Abstract

<p>(<b>A</b>) Self-motion perception was tested in 21 observers seated on a motion platform. Motion stimuli were yaw rotations lasting for 5 s with peak velocity of 0.1°/s, 0.6°/s, 1.1°/s, and 4°/s. (<b>B</b>) Example of a motion profile consisting of a single cycle sinusoidal acceleration. Acceleration, velocity and displacement are illustrated for the highest velocity used in this experiment (4°/s). (<b>C</b>) Observers wore a head-mounted display through which 5-s videos were presented, depicting their own body, the body of another participant matched for gender and age, or an inanimate object. (<b>D</b>) During congruent trials the observers and the object depicted in the video were rotated in the same direction (specular congruency). The participants depicted in the photographs have given written informed consent, as outlined in the PLoS consent form, to publication of their photograph.</p