Table 1.

The VOR response to sinusoidal stimulation before UL in both GVS and non-GVS groups (the baseline).

	Group	0.08 Hz	0.1 Hz	0.16 Hz	0.32 Hz	0.64 Hz	1 Hz	Total
Gain	GVS group	0.80 ± 0.04	0.82 ± 0.03	0.85 ± 0.06	0.86 ± 0.05	0.85 ± 0.04	0.82 ± 0.05	0.83 ± 0.03
	Non-GVS group	0.74 ± 0.08	0.79 ± 0.05	0.86 ± 0.05	0.87 ± 0.05	0.88 ± 0.07	0.82 ± 0.05	0.83 ± 0.05
	p-valuea	0.070	0.185	0.791	0.687	0.174	0.836	0.714
Phase	GVS group	21.90 ± 6.95	14.42 ± 4.82	10.79 ± 3.27	8.03 ± 2.15	7.30 ± 3.07	2.83 ± 2.22	10.88 ± 2.96
	Non-GVS group	24.65 ± 2.51	17.94 ± 2.99	10.80 ± 3.28	7.14 ± 3.53	5.55 ± 2.14	6.49 ± 4.27	12.10 ± 1.50
	p-valuea	0.296	0.113	0.998	0.540	0.299	0.071	0.339
Symmetry	GVS group	1.80 ± 1.77	0.68 ± 0.38	0.78 ± 0.78	0.50 ± 0.26	0.41 ± 0.33	0.55 ± 0.41	0.79 ± 0.53
	Non-GVS group	0.43 ± 0.21	0.56 ± 0.24	0.67 ± 0.23	0.49 ± 0.34	0.47 ± 0.28	0.51 ± 0.24	0.52 ± 0.12
	p-valuea	0.071	0.408	0.351	0.918	0.717	0.806	0.536

^aThe average value of each GVS and non-GVS group was compared by an independent t-test or Mann–Whitney U-test according to data normality.

VOR, vestibulo-ocular reflex; UL, unilateral labyrinthectomy; GV, galvanic vestibular stimulation.