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Table 3 Pre-treatment CNV data for migraine patients vs. healthy controls

From: Progressive muscle relaxation reduces migraine frequency and normalizes amplitudes of contingent negative variation (CNV)

 

M migraine patients (n = 35) (SD)

M healthy controls (n = 46) (SD)

t-value (p)

iCNV amplitude (μV)

−11.65 (5.65)

−8.62 (4.37)

−2.63 (0.006**)

oCNV amplitude (μV)

−8.66 (2.65)

−6.7 (2.51)

−3.39 (<0.001***)

Habituation coefficient

−0.05 (1.08)

0.13 (1.11)

−0.72 (0.22)

  1. μV microvolt, M mean value, n number of persons, SD standard deviation; **p <0.01, ***p <0.001