Additional analyses were performed to probe regional source activities associated with factor 345 (cf. Fig. 6C, row 2). However, there were no significant effects at frontopolar sites (Fpz, Fp1/2), and only a significant main effect of intensity at mid-frontocentral (FCz, Cz; F[2, 74] = 10.0, p = .0002, ε = 0.9857) and inferior-occipital sites (Iz; F[2, 74] = 3.81, p = .03, ε = 0.9435), both resulting from a source increase with an increase in odor intensity (Fig. 6B, rows 1 and 2).
