Visual Stimulus

A passive polarized 42-inch 3D LCD TV was used for stimulus presentation. The visual stimulus was shown using TOBII software. The visual stimulus was a video that moves along a road, showing a view of movement (Fig. 10.2). Specialized movements along pitch and roll axes were created in the animated video (the visual stimulus). The animated video was created in such a way that the camera was rotated alternately on the two axes with 30 degrees of amplitude and 0.167 Hz of temporal frequency. Both the 2D and 3D versions of the animated video were created using 3D computer graphics software (Omega Space, Solidray Inc.).

A previous study had shown that with camera rotations along the pitch and roll axes, VIMS can be easily induced.36 The duration of the animated

Flow chart of the experiment

Figure 10.1 Flow chart of the experiment.

A view of the stimulus as seen by the participants

Figure 10.2 A view of the stimulus as seen by the participants.

video was two minutes. The animated video consisted of rotation along the pitch axis in the first minute, and in the second minute, the rotation was along the roll axis. In the experiment, the animated video was repeated five times, making the total duration 10 minutes.

 
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