Table 2.

Mediation of AUDIT, SP, and PCC activity during inhibition of action

	Path a (X → M)	Path b (M → Y)	Path c (X → Y)	Path c′ (X → Y)	Mediation path (c–c′)
Model 1: X (SP) → Y (PCC activity) mediated by M (AUDIT)
β	0.58	0.12	0.30	0.23	0.07
p	0.033	0.001	0.001	0.001	0.065
Model 2: X (AUDIT) → Y (PCC activity) mediated by M (SP)
β	0.15	0.23	0.15	0.11	0.04
p	0.040	0.001	0.001	0.001	0.105
Model 3: X (SP) → Y (AUDIT) mediated by M (PCC activity)
β	0.30	1.21	0.58	0.22	0.36
p	0.001	0.004	0.033	0.448	0.014
Model 4: X (AUDIT) → Y (SP) mediated by M (PCC activity)
β	0.15	0.62	0.15	0.06	0.09
p	0.001	0.001	0.040	0.456	0.005
Model 5: X (PCC activity) → Y (AUDIT) mediated by M (SP)
β	0.7	0.22	1.37	1.21	0.15
p	0.001	0.448	0.001	0.004	0.486
Model 6: X (PCC activity) → Y (SP) mediated by M (AUDIT)
β	1.37	0.06	0.7	0.62	0.08
p	0.001	0.456	0.001	0.001	0.458