Variable | GS (n = 10) | IWHM (n = 18) | IWLM (n = 19) | Statistics |
---|---|---|---|---|
Frontal derivation | ||||
 Delta (1–4 Hz) | 87.96 [79.34, 90.48] | 80.74 [75.23, 83.99] | 80.81 [76.26, 85.81] | H = 5.046, P = 0.080 |
 Theta (4–8 Hz | 5.85 [4.54, 8.54] | 7.39 [6.24, 9.56] | 7.20 [6.61, 10.78] | H = 3.820, P = 0.148 |
 Alpha (8–12 Hz) | 3.77 [2.49, 6.48] | 5.08 [3.56, 6.84] | 5.10 [3.80, 8.26] | H = 2.767, P = 0.251 |
 Sigma (12–16 Hz) | 1.31 [1.16, 2.71] | 2.51 [1.75, 3.35] | 2.15 [1.62, 4.32] | H = 3.498, P = 0.174 |
 Beta (16–32 Hz) | 1.26 [1.09, 2.00] | 2.50 [1.54, 3.49] | 1.94 [1.65, 2.99] | H = 5.756, P = 0.056 |
 Beta /Delta | 0.01 [0.01, 0.03] | 0.03 [0.02,0.04]a | 0.03 [0.02, 0.04] | H = 6.904, P = 0.032 |
 Beta/Theta | 0.27 [0.17, 0.37] | 0.34 [0.23, 0.53] | 0.25 [0.18, 0.36] | H = 1.907, P = 0.385 |
 Alpha/Delta | 0.04 [0.03, 0.08] | 0.07 [0.04, 0.09] | 0.07 [0.04, 0.11] | H = 3.183, P = 0.204 |
 Alpha/Theta | 64.00 ± 16.42 | 76.60 ± 41.44 | 74.32 ± 30.73 | F = 0.487, P = 0.618 |
Central derivation | ||||
 Delta (1–4 Hz) | 78.42 [74.84, 86.28] | 74.67 [66.94, 82.17] | 77.34 [74.20, 82.11] | H = 3.930, P = 0.140 |
 Theta (4–8 Hz | 10.04 [6.57, 10.67] | 9.98 [8.57, 11.37] | 9.54 [8.07, 12.22] | H = 0.281, P = 0.869 |
 Alpha (8–12 Hz) | 5.74 [3.51, 7.13] | 5.94 [4.59, 9.21] | 4.84 [4.01, 7.00] | H = 2.483, P = 0.289 |
 Sigma (12–16 Hz) | 3.11 [2.35, 4.39] | 4.39 [3.15, 6.77] | 3.29 [2.62, 4.55] | H = 5.447, P = 0.066 |
 Beta (16–32 Hz) | 1.72 [1.43, 3.05] | 2.79 [1.51, 4.42] a | 2.00 [1.45, 3.38] | H = 3.121, P = 0.210 |
 Beta /Delta | 0.02 [0.02, 0.04] | 0.04 [0.02, 0.06] | 0.03 [0.02, 0.04] | H = 3.087, P = 0.214 |
 Beta/Theta | 0.18 [0.15, 0.31] | 0.28 [0.20, 0.43] | 0.20 [0.15, 0.35] | H = 2.385, P = 0.303 |
 Alpha/Delta | 0.07 [0.04, 0.09] | 0.08 [0.05, 0.14] | 0.06 [0.05, 0.09] | H = 2.632, P = 0.268 |
 Alpha/Theta | 0.57 [0.47, 0.66] | 0.58 [0.51, 0.92] | 0.52 [0.42, 0.75] | H = 1.774, P = 0.412 |