Table 4.

Psychophysiological interaction analysis

Seed	MNIa, peak x, y, z	Z-score	Size, voxels	Cluster P value, FWEb	Regionc
Left putamen
TENCd > PTSDe	-44, -12, -16	4.65	295	0.01	Left temporal lobe
	(-32, 0, -30)	4.01			Left parahippocampal lobe/amygdala
	(-30, -10, -22)	3.72			Left parahippocampal gyrus
PTSD > TENC	No significant differences
Right putamen
TENC > PTSD	-30, 0, -32	4.54	248	0.019	Left temporal lobe wm/amygdala
	(-48, 8, -30)	3.97			Left middle temporal gyrus
	(-56, 4, -26)	3.44			Left middle temporal gyrus
PTSD > TENC	No significant differences
Left middle frontal gyrus
TENC > PTSD	No significant differences
PTSD > TENC	No significant differences
Left parahippocampal gyrus
TENC > PTSD	44, -34, 42	4.45	449	0.001	Right inferior parietal lobule
	48, -38, 50	-4.27			Right inferior parietal lobule
	52, -26, 50	-3.77			Right postcentral gyrus
	-10, 66, 10	4.42	263	0.017	Left medial frontal gyrus
	(-14, 62, 0)	-4.06			Left medial frontal gyrus
	(-8, 62, 18)	-3.45			Left medial frontal gyrus
	34, -20, 68	4.37	487	0.001	Right precentral gyrus
	(34, -16, 46)	-4.14			Right precentral gyrus
	(22, -16, 74)	-4.12			Right precentral gyrus
PTSD > TENC	No significant differences

^aMontreal Neurological Institute.

^bFamily-wise error.

^cRegions were identified based on nearest gray matter.

^dPost-traumatic stress disorder.

^eTrauma-exposed normal control.