Fig. 1
From: Developmental changes of the contingent negative variation in migraine and healthy children
Amplitudes (mean and standard deviation) of different CNV components which were determined at T1 (1998) and T2 (2006) in healthy subjects and migraine patients (with remission, improved or worsened headaches). Reaction time (mean and standard deviations in parentheses) is given in the figure with PINV. P values demonstrate difference (paired t tests) between amplitudes of the iCNV obtained at T1 and T2. These differences did not survive Bonferroni alpha adjustment for the late CNV component and the total CNV