Motion Sickness When Driving With a Head-Slaved Camera System
HUMAN FACTORS RESEARCH INST TNO SOESTERBERG (NETHERLANDS)
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In a field experiment, we examined motion sickness incidence when driving with a head-slaved camera system. More specifically, we looked at the contribution to motion sickness of visual feedback on head roll and of stereoscopic view with the head-slaved camera system. The system was capable of motion in all three rotational degrees-of-freedom DOFs. In the experiment, twelve subjects drove a car around a closed circuit in four different viewing conditions. In two conditions, no feedback on head roll was present by disabling the roll DOF of the camera platform i.e., resulting in a 2 DOF system, and either mono view or stereo view was used. In the other two conditions, visual feedback on bead roll was present i.e., a 3 DOF system, and again either mono view or stereo view was used. As a baseline, subjects also drove with direct view, either with an unrestricted field-of-view FOV or with FOV-restricting goggles. The 2 DOF conditions were tested on a separate day from the 3 DOF conditions, and a direct view condition always preceded a condition with the head-slaved camera system. Upon completion of the driving task in each condition, the subjects filled in the motion sickness questionnaire MSQ. Simulator sickness questionnaire SSQ total scores were derived from the MSQ. Results showed a significant difference between the 2 DOF and 3 DOF conditions average SSQ total scores of 17.7 and 8.4, respectively. No significant differences between mono and stereo conditions were observed. These results indicate that motion sickness incidence with our head-slaved camera system can be reduced considerably by adding a roll component to the system.
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