Fig. 3

Scatter diagram of Baseline vs. Stimulation effect. a Sway path length, b ML mean velocity and c AP mean velocity in the control group. d Sway path length, e ML mean velocity and f AP mean velocity in the nGVS group. Significant correlations were found for all nGVS results. AP, anteroposterior; ML, mediolateral; nGVS, noisy galvanic vestibular stimulation