Spearman correlation coefficients were used to find associations between risk-taking behavior during the BART (mean number of pumps), feedback-related ERPs, and ratings of the personality self-report questionnaires in both groups. For all correlation analysis, FRN and P300 amplitudes were taken from the difference waveforms (defined as the maximum amplitude of the negative waveform 200 to 300 ms following feedback onset for the FRN and the maximum amplitude of the positive waveform 300 to 400 ms following feedback onset for P300).
