Table 3.

Peak MNI coordinates for contrast comparisons analysis between PAG subregions

		Peak voxel, MNI coordinates
Region	Z‐max	x	y	Z
Ventrolateral > lateral
Right
PAG	8.12	4	−34	−16
Hypothalamus/thalamus	5.57	0	−30	−2
L putamen	4.58	−26	−4	8
R caudate	4.46	20	−2	14
L thalamus	4.26	−12	−8	4
Upper pons	4.11	4	−36	−24
Lower pons	3.93	−2	−38	−36
Medulla	3.92	4	−44	−54
L insulaa	3.03	−40	16	−2
Left
PAG/VTA/dorsal raphe	7.89	0	−32	−16
R frontal pole BA9	4.54	28	40	32
R middle frontal gyrus BA9	4.2	32	26	30
L cerebellum	3.96	−30	−68	−36
R angular gyrus (TPJp)	3.87	42	−50	34
R supramarginal gyrus (IPL)	3.81	56	−32	42
R thalamus	3.56	6	−16	−4
R upper pons/central gray	3.55	4	−36	−26
R upper/mid pons	3.54	4	−38	−30
Lateral > ventrolateral
Right
L precuneus cortex	4.35	−10	−56	56
L SPL BA5/S1 BA2	4.18	−20	−44	50
R/L occipital pole	3.59	−4	−90	10
L S1	3.53	−32	−40	50
R/L intracalcarine cortex	3.49	10	−86	12
L supramarginal gyrusa	3.33	−52	−34	50
Left
R/L occipital pole	4.38	14	−90	20
R/L superior temporal gyrus	4.58	−52	−40	6
R/L M1 BA4/SPL	3.99	−6	−36	56
R S1 BA3/S2	3.91	52	−8	22
R/L planum temporal (TPJa)	3.78	−40	−40	14
R/L superior temporal gyrus	3.5	−64	−30	2
R/L middle temporal gyrus	3.42	−54	−56	4
R lateral occipital cortex	3.43	30	−76	18
R premotor cortex BA6	3.33	60	4	30
R S2	3.19	56	−10	14
Ventrolateral > dorsolateral
Right
R PAG	9.39	4	−30	−12
R parahippocampal gyrus	5.85	22	−36	−14
R/L cerebellum	5.59	−12	−50	−22
R superior temporal gyrus	3.8	54	−22	−2
R middle temporal gyrus	3.65	62	−26	−6
L occipital pole/lateral occipital cortex	3.56	−26	−92	−2
L lingual gyrus	3.36	−20	−84	0
Left
L PAG	10	−2	−32	−12
R parahippocampal gyrus	5.63	22	−36	−14
R medulla	4.72	2	−42	−54
R upper pons	4.55	6	−34	−24
R mid pons	4.51	4	−38	−34
R temporal fusiform cortex/hippocampus	4.3	34	−28	−20
Dorsolateral > ventrolateral
Right
PAG	11	0	−32	−4
R/L thalamus	6.41	0	−28	6
Premotor cortex BA6 (SMA)	3.64	10	2	56
Cingulate gyrus (pMCC)	3.43	−4	−32	46
R M1 BA4	3.28	4	−36	58
R SPL/M1a	3.09	2	−38	52
Left
PAG	11.2	0	−32	−4
R/L thalamus	6.38	−2	−26	6
R premotor cortex BA6 (SMA)	4.05	10	0	58
L superior frontal gyrus	3.89	−22	10	58
R/L SPL/precuneous cortex	3.71	12	−20	58
L hippocampusa	3.40	−10	−40	2
L M1a	3.27	−10	−32	68
Lateral > dorsolateral
Right
PAG	6.86	8	−34	−6
R/L occipital pole/intracalcarine cortex	4.31	−2	−90	12
R occipital fusiform gyrus/lingual gyrus	4.1	22	−68	−8
R lateral occipital cortex	4.61	50	−76	4
R middle temporal gyrus	3.81	70	−32	−10
R superior temporal gyrus/lateral occipital cortex	3.6	58	−34	4
S1 BA1‐3	4.22	50	−28	54
R/L supramarginal gyrus/SPL BA7	4	40	−28	36
L S2/insular gyrus	4.32	−42	−30	20
R premotor cortex/M1a	3.31	34	−28	70
Left
L PAG	7.68	−6	−32	−10
R lingual gyrus	4.61	16	−44	−10
R/L occipital pole	4.54	14	−90	22
L substantia nigra	4.5	−14	−26	−12
R temporal occipital fusiform cortex	4.37	28	−56	−10
R/L middle temporal gyrus	4.05	−48	−26	−14
R/L superior temporal gyrus	4.05	−50	0	−20
L planum temporal	3.88	−40	−40	12
L mid‐insulaa	3.90	36	−8	14
L supramarginal gyrusa	3.58	−60	−48	14
Dorsolateral > lateral
Right
PAG	8.65	0	−32	−2
R/L thalamus	5.78	−4	−16	8
R premotor cortex BA6 (SMA)	3.85	6	−4	56
R paracingulate gyrus	3.56	4	8	48
Left
R PAG	7.24	0	−34	−2
R/L thalamus	5.08	−10	−12	12
R frontal pole	4.59	28	40	32
R middle frontal gyrus	4.37	34	32	42
R premotor cortex/SMA	4.23	6	−8	62
L/R putamena	4.88	−24	−6	10
L/R caudatea	4.33	−16	0	18
L insulaa	3.50	−34	6	6
L/R amygdalaa	2.91	26	0	−12

MNI coordinates (in mm) are reported at maximum peak and are corrected for multiple comparisons using family‐wise error correction at Z > 2.3 and P < 0.05. BA, Brodmann area; IPL, inferior parietal lobule; L, left; M1, primary motor cortex; PAG, periaqueductal gray; R, right; S1, primary somatosensory cortex; S2, secondary somatosensory cortex; SMA, supplementary motor area; SPL, superior parietal lobule; TPJa, temporoparietal junction, anterior division; TPJp, temporoparietal junction, posterior division.

^aSubcluster peak coordinates.