At lateral-temporal and frontocentral sites (T7/8, C3/4, FC5/6, CP5/6) for factor 345 (cf. Fig. 6C, row 2; for detailed ANOVA means, see supplementary Table S5), there was a highly significant main effect of intensity, F(2, 74) = 23.8, p < .0001, ε = 0.9062, confirming the monotonic increase of N1 sink from weak to strong odor intensities (Fig. 7, top). There was also a significant main effect of hemisphere, F(1, 37) = 7.12, p = .01, which stemmed from a greater N1 sink over the left than right hemisphere (M ±SD, −0.68 ±0.92 vs. −0.58 ±0.86). However, no other effect attained a conventional level of significance, including effects involving group (all F < 1.0).
