monotonic increase (weak to strong, 8.71 ±4.69, 9.10 ±4.26, 11.31 ± .69 µV) and greater P2 at z than Pz (10.29 ±5.12 vs. 9.12 ± .11 µV), but there was no difference between patients and controls (9.75 ±5.36 vs. 9.66 ±3. 5 µV). This paralleled highly significant main effects of intensity, F(2, 74) = 6.14, p = .004, ε = 0.9631, and site, F(1, 37) = 12.4, p = .001, for P2 latency, stemming from a monotonic decrease in latency (weak to strong, 827 ±257, 760 ±225, 721 ±213 ms) and shorter latency at Cz than Pz (741 ±213 vs. 798 ±254 ms), but there was no significant difference between patients and controls (793 ±245 vs. 745 ±223 ms).
