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Table 1 Values of NCSE mean ± SD set O (healthy with the eyes open) with S, F and N at various threshold levels

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

(θ) Set O Set Z Set S Set F Set N
Mean ± SD Mean ± SD Mean ± SD Mean ± SD Mean ± SD
15 0.74 ± 0.01 0.80 ± 0.00 0.37 ± 0.01 0.66 ± 0.01 0.67 ± 0.01
20 0.80 ± 0.01 0.83 ± 0.00 0.42 ± 0.01 0.68 ± 0.01 0.69 ± 0.01
25 0.83 ± 0.01 0.83 ± 0.00 0.45 ± 0.01 0.68 ± 0.01 0.69 ± 0.01
30 0.84 ± 0.00 0.80 ± 0.01 0.49 ± 0.01 0.66 ± 0.01 0.68 ± 0.01
35 0.83 ± 0.00 0.76 ± 0.01 0.51 ± 0.01 0.64 ± 0.01 0.65 ± 0.01
40 0.82 ± 0.01 0.71 ± 0.01 0.53 ± 0.01 0.62 ± 0.01 0.63 ± 0.01
45 0.80 ± 0.01 0.66 ± 0.01 0.56 ± 0.01 0.58 ± 0.01 0.60 ± 0.01
46 0.79 ± 0.01 0.65 ± 0.01 0.56 ± 0.01 0.58 ± 0.01 0.59 ± 0.01
50 0.77 ± 0.01 0.61 ± 0.01 0.58 ± 0.01 0.56 ± 0.01 0.57 ± 0.02
  1. O (eyes open) healthy subjects data, Z (eyes closed) healthy subjects data, N and F epileptic subjects during seizure-free interval (interictal), and S epileptic subjects during seizure interval (ictal)