Table 3 Mean motor thresholds after median nerve and transcranial magnetic stimulation, baseline and conditioned amplitudes of motor evoked potentials (mean ± standard deviation) in healthy volunteers and migraine without aura patients between (MO) and during (MI) the attacks. (p < 0.05 * MO vs. HV, ** MI vs. MO)
|  | HV (n = 16) | MO (n = 16) | MI (N = 14) |
|---|---|---|---|
Median nerve motor threshold (mA) | 8.6 ± 1.8 | 7.4 ± 1.9 | 8.9 ± 2.7 |
Resting motor threshold (%) | 58.3 ± 11.4 | 55.1 ± 6.0 | 60.6 ± 9.7 |
Baseline | 2460.3 ± 2771.9 | 2460.4 ± 2327.0 | 1868.2 ± 1279.2 |
2 ms (μV) | 1407.2 ± 2025.6 | 1255.6 ± 1272.5 | 803.9 ± 803.9 |
4 ms (μV) | 1856.1 ± 2173.5 | 1920.8 ± 2073.9 | 906.9 ± 964.0 |
6 ms (μV) | 2418.1 ± 2694.6 | 2821.2 ± 3104.7 | 1136.5 ± 962.3 |
8 ms (μV) | 2010.8 ± 2008.6 | 2887.7 ± 2539.6 | 1053.7 ± 891.3 ** |
Slope | 11.2 ± 293.5 | 242.3 ± 334.6 * | −129.6 ± 173.8 ** |