The linear regression N1–P1 slope of VEP amplitudes over all blocks differed significantly between the two groups (F1,75 = 24.493, p < 0.0001, partial η2 = 0.246, op = 0.998; raw data are shown in Fig. 3). The P1–N2 slope of the linear regression analysis was not different between groups (F1,75 = 3.312, p = 0.073, partial η2 = 0.042, op = 0.435; Fig. 3).
Fig. 3 Raw habituation slope of VEP N1-P1 and P1–N2 peak-to-peak amplitudes (mean ± SEM) over 6 sequential blocks of 100 averaged responses in healthy volunteers (HV, n = 30), patients with pure visual aura (MA, n = 27), patients with complex aura (MA+, n = 20) and the 2 latter groups combined (MAtot, n = 47)