Figure 4
From: Neural signatures of different behavioral types in fairness norm compliance
Mediation analysis. Depicted is the path diagram (including regression coefficients and P-values) of the mediation analysis demonstrating that the self-control capacity (indexed by the NoGo-P300 amplitude) mediates the impact of baseline activation in DLPFC (indexed by baseline beta3 current density in DLPFC) on strategic norm compliance (indexed by the amount of money transferred to the recipient in the punishment threat condition). Path a represents the effect of baseline activation in DLPFC on self-control capacity. Path b represents the impact of self-control capacity on strategic norm compliance controlling for baseline activation in DLPFC. Together, path a and path b represent the indirect (mediated) effect of baseline activation in DLPFC on strategic norm compliance through self-control capacity. Path c’ represents the direct effect of baseline activation in DLPFC on strategic norm compliance and is calculated controlling for the indirect, mediated effect. Path c represents the total (mediated and direct) effect of baseline activation in DLPFC on strategic norm compliance. Bootstrapping statistics (see Results section for details) revealed that path c’ is significantly smaller than path c (P < 0.05), providing evidence that self-control capacity is indeed a significant mediator.
