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Table 4 CNV data for all groups at pre, post and follow-up measurement

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

 

Pre-treatment amplitude in μV (SD)

Post-treatment amplitude in μV (SD)

Follow-up amplitude in μV (SD)

iCNV

Migraine

+ PMR

−11.46 (4.79)

−8.68 (3.54)

−8.5 (4.88)

− PMR

−11.81 (6.4)

−11.22 (4.85)

−11.19 (5.1)

Healthy

+ PMR

−8.19 (3.25)

−8.66 (4.35)

−8.72 (3.58)

− PMR

−8.97 (5.18)

−7.76 (5.13)

−7.24 (5.64)

oCNV

Migraine

+ PMR

−8.58 (2.26)

−6.59 (1.93)

−6.28 (2.41)

− PMR

−8.72 (3)

−7.08 (2.07)

−6.71 (2.55)

Healthy

+ PMR

−6.3 (2.23)

−5.61 (4)

−6.3 (2.57)

− PMR

−7.04 (2.73)

−5.6 (2.74)

−5.72 (3.72)

Habituation coefficient

Migraine

+ PMR

0.20 (1.28)

−0.31 (0.94)

0.31 (0.58)

− PMR

−0.26 (0.87)

−0.18 (0.93)

0.10 (0.87)

Healthy

+ PMR

−0.03 (1.23)

0.21 (0.85)

0.08 (0.81)

− PMR

0.26 (1.01)

−0.01 (0.83)

−0.14 (0.82)

  1. μV microvolt, SD standard deviation