Fig. 2.

(A) Time-courses of the P2 and MFN component at FCz (upper panel; also showing P300 peak used for peak quantification [Yeung and Sanfey, 2004]) and the P300 component at Pz (lower panel; also showing N2 peak used for peak quantification [Pfabigan et al., 2011]). Time point zero indicates onset of the flag, tax income, and the 40% tax rate. Negative is drawn upwards per convention. (B) Scalp topographies of the mean difference between coercive and legitimate trials in the P2 time interval (170–210 ms; left side), MFN time interval (260–300 ms; in the middle) and the P300 time interval (300–400 ms, right side). (C) Bar graph depicting mean and SE of P2, MFN and P300 peak values per condition and time point. Please note that absolute values of the three ERPs (in µV) were plotted for a uniform display. Note: b2p = base-to-peak; p2p = peak-to-peak; p2p2p = peak-to-peak-to-peak approaches for ERP quantification.