Scatter plots were generated to display the correlation between connectivity and delay discounting gradient after controlling for age and gender (Figure 3). The procedure was as follows: BOLD time series for left aPFC regions were correlated with BOLD time series for the NAcc, and the Fisher Z correlation coefficients were then correlated with ln(k). Functional connectivity between the NAcc and aPFC was significantly correlated with ln(k) (left aPFC: −22 +54 +08, R= 0.24, p= 0.008; and −28 +47 +15, R= 0.28, p= 0.002).
