Table 1.

Participant-wise mean of EEG descriptive statistics—kurtosis, root mean square (RMS), Higuchi fractal dimension, zero-crossings—of resting state EEG with eyes open. The difference between each tSCS-on condition with respect to tSCS-off is given in addition to the p-values associated with a Wilcoxon signed-rank test as these descriptive statistics were found to be non-parametric. The p-values were adjusted using the Benjamini/Hochberg false discovery rate correction method.

	Fz			Oz
	Kurtosis (Unitless)
	Mean	p-Value	Difference	Mean	p-Value	Difference
tSCS-off	2.84	-	-	3.55	-	-
tSCS-on	2.76	0.61	−0.08	2.11	<0.001	−1.44
tSCS-on + adaptive	3.21	<0.01	0.37	3.41	0.97	−0.15
tSCS-on + median	2.88	0.70	0.04	3.06	0.33	−0.50
tSCS-on + notch	2.90	0.47	0.07	2.66	<0.001	−0.89
tSCS-on + SMA	2.90	0.49	−0.06	3.72	0.69	0.17
	RMS ($\mu$ V)
	Mean	p-value	Difference	Mean	p-value	Difference
tSCS-off	5.87	-	-	5.29	-	-
tSCS-on	8.37	0.01	2.50	25.40	<0.001	20.11
tSCS-on + adaptive	5.28	0.05	−0.58	5.83	0.13	0.54
tSCS-on + median	5.15	<0.01	−0.72	4.09	<0.01	−1.20
tSCS-on + notch	6.45	0.16	0.58	9.88	<0.01	4.60
tSCS-on + SMA	7.02	<0.001	1.15	6.9	0.11	1.61
	Higuchi fractal dimension
	Mean	p-value	Difference	Mean	p-value	Difference
tSCS-off	1.045	-	-	1.054	-	-
tSCS-on	1.056	<0.001	0.01	1.065	<0.01	0.01
tSCS-on + adaptive	1.050	<0.01	0.004	1.060	<0.01	0.006
tSCS-on + median	1.020	<0.001	−0.03	1.035	<0.001	−0.02
tSCS-on + notch	1.086	<0.001	0.03	1.159	<0.001	0.11
tSCS-on + SMA	1.045	0.93	−0.0002	1.058	0.30	0.004
	Zero crossings (Crossings/10 s)
	Mean	p-value	Difference	Mean	p-value	Difference
tSCS-off	22.12	-	-	26.55	-	-
tSCS-on	29.0	<0.001	6.85	41.90	<0.001	15.34
tSCS-on + adaptive	26.64	<0.001	4.52	31.05	<0.01	4.50
tSCS-on + median	12.76	<0.001	−9.36	16.70	<0.001	−9.85
tSCS-on + notch	27.97	<0.01	5.85	63.60	<0.001	37.05
tSCS-on + SMA	20.84	0.077	−1.28	27.71	0.96	1.16