N1-P1 HV (n = 30) MAtot (n = 47) MA (n = 27) MA+ (n = 20)
1st amplitude block (μV) 6.97 ± 2.90 7.28 ± 3.23 6.53 ± 3.36 8.27 ± 2.83
2nd amplitude block (μV) 7.15 ± 3.02 7.39 ± 3.23 6.43 ± 3.29 8.69 ± 2.70
3rd amplitude block (μV) 6.87 ± 2.79 7.40 ± 2.96 6.49 ± 2.83 8.64 ± 2.74
4th amplitude block (μV) 6.55 ± 2.74 7.16 ± 3.17 6.12 ± 3.07 8.57 ± 2.81
5th amplitude block (μV) 6.25 ± 2.57 7.34 ± 3.00 6.49 ± 2.97 8.49 ± 2.70
6th amplitude block (μV) 5.97 ± 2.63 7.42 ± 3.02 6.65 ± 3.09 8.45 ± 2.64
Slope −0.50 ± 0.36 +0.006 ± 0.40 +0.01 ± 0.30 +0.0049 ± 0.18