Toward the detection of the onset of virtual reality sickness by autonomic indices

We studied the response of autonomic nervous system in `sickness´ induced by visual and motion stimulus, to establish a guideline for designing systems free from the sickness. This paper reports the results of our second basic experiment with four projected screens and a 6-DOF motion base. We identified the characteristic changes in respiration and heart rate related with the sickness again, which we had already found. Furthermore, we found and inspected an interesting index that very low frequency waves (about 0.05-0.2Hz) appear in the ECG baseline and are often observed when the participant of the experiment has fallen into the sickness.