Table 6.

Post symptom ratings (mean ± SEM) at the end of each session for the Visual Analog Scale (VAS) and Simulator Sickness Questionnaire (SSQ) for subjects in the virtual reality based therapy (VRBT) group. P-values obtained from Friedman test.

	Session 1	Session 2	Session 3	Session 4	Session 5	Session 6	Session p-value
VAS
Dizziness	1.6 ± 0.4	1.1 ± 0.3	1.4 ± 0.3	0.8 ± 0.2	1.0 ± 0.3	0.5 ± 0.2	0.012
Headache	0.4 ± 0.1	0.7 ± 0.2	0.5 ± 0.2	0.4 ± 0.1	0.6 ± 0.3	0.2 ± 0.1	0.34
Nausea	0.7 ± 0.3	0.3 ± 0.2	0.6 ± 0.3	0.2 ± 0.1	0.1 ± 0.1	0.1 ± 0.04	0.062
Visual Blurring	0.9 ± 0.3	0.8 ± 0.3	0.7 ± 0.3	0.6 ± 0.2	0.5 ± 0.2	0.2 ± 0.1	0.004
SSQ
Disorientation	3.5 ± 0.5	2.6 ± 0.5	3.1 ± 0.5	2.1 ± 0.3	1.9 ± 0.3	1.7 ± 0.3	0.002
Nausea	2.3 ± 0.4	1.7 ± 0.3	2.4 ± 0.4	1.6 ± 0.3	1.8 ± 0.3	1.5 ± 0.3	0.019
Oculomotor Stress	3.9 ± 0.4	3.1 ± 0.5	3.1 ± 0.5	2.8 ± 0.5	2.4 ± 0.5	1.8 ± 0.4	0.004