Simulator sickness when performing gaze shifts within a wide field of view optic flow environment: preliminary evidence for using virtual reality in vestibular rehabilitation

Table 3 Incidence of non-zero responses for the self-reported Subjective Units of Discomfort SUDS) and Simulator Sickness Questionnaire (SSQ) subscales and total score, as a function of visit number. Mean incidence, χ² test of association, and p value are also provided. * indicates significant effect of visit number.

Visit	SUDS	SSQ:Nausea	SSQ:Oculomotor	SSQ:Disorientation	SSQ:Total
1	35	27	56	9	56
2	38	11	33	0	33
3	22	11	26	5	28
4	25	16	19	10	26
5	19	0	26	1	27
6	10	8	14	8	14
Mean	25	12	29	5	31
χ²	17.9	25.2	30.7	10.1	25.3
p-value	.003*	<.001*	<.001*	.072	<.001*

ISSN: 1743-0003