Table 3.

Descriptives (means ± SEs) and statistical tests (z-scores) for the open provocation VAS for sensitive and control participants.

VAS measure	Sham		TETRA		Difference scorea		TETRA vs. sham		Sensitive vs. control difference scorec
	Sensitive	Control	Sensitive	Control	Sensitive	Control	Sensitiveb	Controlb
Anxiety	1.51 ± 0.22	0.99 ± 0.10	2.24 ± 0.27	1.12 ± 0.11	0.72 ± 0.16	0.13 ± 0.07	−4.022#	−2.650#	−2.935#
Tension	1.51 ± 0.23	1.00 ± 0.10	2.31 ± 0.29	1.20 ± 0.12	0.80 ± 0.18	0.20 ± 0.06	−4.442#	−2.325*	−3.879#
Arousal	1.54 ± 0.23	0.96 ± 0.10	2.20 ± 0.27	1.12 ± 0.11	0.66 ± 0.17	0.16 ± 0.06	−4.170#	−1.527	−3.852#
Discomfort	1.92 ± 0.29	1.25 ± 0.11	2.71 ± 0.31	1.41 ± 0.13	0.79 ± 0.24	0.16 ± 0.06	−3.244#	−2.533**	−2.903#
Fatigue	3.05 ± 0.34	2.04 ± 0.17	3.18 ± 0.34	2.12 ± 0.17	0.13 ± 0.21	0.08 ± 0.10	−1.244	−1.628	−0.792
Relaxationd	7.44 ± 0.28	8.16 ± 0.15	6.65 ± 0.29	7.94 ± 0.16	−0.79 ± 0.24	−0.22 ± 0.08	−3.478#	−2.032*	−2.367*

All data were analyzed using corresponding t-tests with very similar results.

^aDifference score mean ± SE: TETRA – sham; positive value indicates TETRA > sham.

^bz, Wilcoxon signed rank test.

^cz, Mann-Whitney U-test.

^dRelaxation is reversed; therefore, a high score tends toward “extremely” relaxed.

^*p ≤ 0.05.

^**p ≤ 0.01.

^#p < 0.008 (Bonferroni corrected α = 0.008).