Table 2.

Analysis of parameter estimates extracted from a priori regions of interest identified by the group-level CS × Phase interaction

Region	Black Shocks First group				White Shocks First group
	CS1 = Black; CS2 = White				CS1 = White; CS2 = Black
	*P <  0.05; **P < 0.01; ***P < 0.001; ns P > 0.05;				*P < 0.05; **P < 0.01; ***P < 0.001; ns P > 0.05;
	ACQ	REV	ΔCS1	ΔCS2	ACQ	REV	ΔCS1	ΔCS2
A Priori regions of interest
Insula (Left)	**	*	*	**	***	**	***	**
Insula (Right)	**	**	ns (0.064)	**	***	**	***	*
Thalamus	*	ns (0.980)	ns (0.095)	ns (0.733)	***	***	***	*
Caudate	**	ns (0.865)	ns (0.139)	ns (0.681)	**	**	**	*
Midbrain	**	ns (0.56)	ns (0.06)	ns (0.3)	***	***	***	*
Superior frontal gyrus/ACC	**	ns (0.114)	ns (0.062)	*	***	*	***	ns (0.057)
Other regions from FC/REV interaction analysis
Inferior parietal lobule	***	**	*	*	***	ns (0.436)	**	ns (0.451)
Postcentral gyrus	*	ns (0.347)	ns (0.092)	ns (0.685)	***	ns (0.469)	***	ns (0.563)
Posterior insula	*	ns (0.276)	ns (0.160)	ns (0.104)	*	*	**	ns (0.180)
Middle frontal gyrus	***	ns (0.059)	*	*	**	*	ns (0.098)	*