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. 2019 Jul 25;14(7):e0219147. doi: 10.1371/journal.pone.0219147

Fig 5. Mediation analysis.

Fig 5

(A) Model 1 is constructed with skin conductance response (SCR) to GS as the independent variable (X), GS rate as the dependent variable (Y), and sensitivity to reward (SR) as the mediator (M). This model is not significant. (B) Model 2 is constructed with X = SR, Y = GS rate, and M = SCR in the GS trials. Model 2 is significant, indicating that SR enhanced task performance through the increase of SCR. (C) Model 3 is constructed with X = SR, Y = SCR, and M = GS rate. This model is marginally significant. ** p < .01; * p < .05.