Table 2.

Localization and statistics of the peak voxels for the contrast CS+ > CS− and for group differences (Val/Val‐allele group vs. Met/Met‐allele group)

Group analysis	Contrast	Structure	Side	k	x	y	z	Z max	P corr
Main effect of stimulus	CS+ > CS−	Amygdala	L	18	−15	−4	−14	3.14	0.033
		Amygdala	R	12	18	−4	−11	2.85	0.074
		dACC	L	158	−9	26	25	3.89	0.010
		dACC	R	191	9	17	40	5.33	<0.001
		Occipital cortex	L	271	−21	−88	−8	13.71	<0.001
		Occipital cortex	R	259	24	−88	−5	14.81	<0.001
		Insula	L	133	−36	23	1	5.35	<0.001
		Insula	R	161	33	26	4	5.97	<0.001
		Midbrain	R	120	9	−28	−5	4.43	0.001
		NAcc	L	24	−6	5	−8	3.25	0.012
		NAcc	R	24	6	14	−2	3.35	0.008
		vmPFC	L	169	−6	56	−5	3.49	0.037
		vmPFC	R	22	18	17	−17	3.66	0.023
Val/Val‐allele > Met/Met allele group	CS+ > CS−	Amygdala	L	52	−30	−1	−20	3.23	0.025
		Amygdala	R	77	30	−4	−20	2.92	0.062
		dACC	R	81	9	26	40	3.44	0.042
		Occipital cortex	R	128	33	−64	−17	3.47	0.029
		Insula	L	88	−42	11	−11	3.98	0.009
		Midbrain	L	83	−12	−28	−11	4.63	<0.001
		Hippocampus	L	85	−15	−34	−5	3.91	0.005

The threshold was P < 0.05 (FWE‐corrected; small volume correction according to SPM8). All coordinates are given in MNI space. L: left hemisphere, R: right hemisphere.