Symbolic time series analysis of electroencephalographic (EEG) epileptic seizure and brain dynamics with eye-open and eye-closed subjects during resting states

Table 2 Maximum median values of NCSE with the maximum significance level from threshold ranges from 1 to 30 and MSE for scale 1 to 20 using non-parametric Wilcoxon rank sum test

Electrode	Symbolic time series					MSE
	Max. value of NCSE		Minimum P value (significance)		Significance (θ, 1–30)	Max. value of MSE		Minimum P value (significance)		Significance (scale, 1–20)
	EC	EO	P value	Threshold	Threshold	EC	EO	P value	Scale	Scale
C3	0.83	0.85	**0.704	1.2	1–1.2	2.40	2.42	*0.364	6	6
C4	0.83	0.85	*0.478	1	1	2.41	2.43	NS	NA	NA
Cz	0.82	0.85	*0.122	1.2	1–2	2.41	2.44	*0.150	7	4–7, 19
F3	0.83	0.86	**0.145	1.4	1–1.2; 4–10	2.41	2.42	*0.150	7	1–2, 6–7
F4	0.84	0.86	***0.430	1.4	1–2; 4–20	2.41	2.43	*0.109	6	1, 6
F7	0.84	0.85	***0.490	1.2	1–1.4; 4–10	2.42	2.42	*0.167	6	6
F8	0.84	0.86	**0.700	1.2	1–1.4	2.39	2.40	NS	NA	NA
Fp1	0.84	0.87	*0.122	1.4	1–2; 9–10	2.38	2.39	NS	NA	NA
Fp2	0.84	0.86	NS	NS	NS	2.40	2.38	NS	NA	NA
Fz	0.83	0.86	**0.273	6	1–1.4; 3.6–20	2.41	2.43	NS	NA	NA
O1	0.84	0.86	***0.130	1.4	1–3; 5–30	2.39	2.42	*0.478	10	10
O2	0.83	0.85	***0.430	1–1.2	1–2; 3.6–30	2.39	2.42	*0.364	20	9–11, 20
P3	0.84	0.85	**0.443	1–1.2	1–1.4; 3.6–9	2.42	2.44	NS	NA	NA
P4	0.83	0.84	**0.349	1.2	1–1.4; 4–15	2.42	2.44	*0.226	6	5–6
Pz	0.82	0.84	*0.122	1.4	1–2; 5–7	2.38	2.42	*0.437	19	19
T7	0.83	0.85	**0.983	1.4	1–1.4; 4.4–6.5	2.42	2.42	NS	NA	NA
T8	0.84	0.86	*0.302	1.4	1–1.4	2.41	2.43	*0.150	1	1
P7	0.84	0.85	***0.320	1	1–1.4; 3–25	2.41	2.43	NS	NA	NA
P8	0.83	0.84	***0.850	1.2	1–2; 4–30	2.42	2.44	*0.437	1	1

NS not significant, NA not applicable
***Strictly significant, p < 0.0001; **very significant, 0.001 <=p < 0.01; *just significant, 0.01 <=p < 0.05; ^~almost significant, 0.05 <=p < 0.1
The p-value results indicated in italicized using threshold based symbolic entropy are more significant than MSE results at each electrode

ISSN: 1880-6805