Table 3 Mean and standard deviation (SD) for the N2 wave latencies of contact heat evoked potentials of the volar forearm and pooled cheek of migraine patients and healthy controls for trains without and with performing the calculation task
From: Contact heat evoked potentials and habituation measured interictally in migraineurs
N2 wave latencies (ms) | ||||||||
|---|---|---|---|---|---|---|---|---|
Migraine patients | Healthy controls | p values (power) | Mann–Whitney-U | |||||
Without performing the calculation task | Volar forearm (mean ± SD) | Pooled cheek (mean ± SD) | Volar forearm (mean ± SD) | Pooled cheek (mean ± SD) | Volar forearm | Pooled cheek | Volar forearm | Pooled cheek |
Train 1 | 419.90 ± 34.79 | 333.66 ± 36.15 | 394.57 ± 23.19 | 318.95 ± 36.97 | 0.013 (0.81) | 0.122 (0.46) | 121.5 | 669.5 |
Train 2 | 416.46 ± 38.53 | 334.60 ± 32.81 | 393.32 ± 22.69 | 313.02 ± 41.76 | 0.023 (0.69) | 0.016 (0.77) | 130.0 | 627.5 |
With performing the calculation task | ||||||||
Train 1 | 400.69 ± 34.17 | 329.56 ± 42.40 | 365.76 ± 47.11 | 310.13 ± 39.18 | 0.046 (0.80) | 0.087 (0.60) | 98.5 | 465.0 |
Train 2 | 390.92 ± 37.03 | 325.16 ± 32.18 | 353.54 ± 48.95 | 304.61 ± 43.33 | 0.015 (0.29) | 0.045 (0.71) | 74.0 | 321.0 |