Table 3.

Return of fear

Site	Cluster size	ZMAX	Coordinates (MNI)
			x	y	z
Left vmPFC	190	4.0471	−4	39	−15
		3.7893	−12	48	−14
Left amygdala	56	4.0272**	−27	−8	−14
Right vmPFC	65	3.9924**	3	32	−20
Right cerebral white matter (corpus callosum)	61	3.9102	8	22	18
Right anterior cingulate gyrus	61	3.6232	10	34	6
		3.4330	8	40	−2
Left paracingulate gyrus	46	3.5662	−6	44	0

During recall, participants in the late wake group showed a stronger differential activation between conditioned and extinguished stimuli compared with neutral stimuli (CS+E > CS−E; each corrected for acquisition). Regions were thresholded at p < 0.001, uncorrected, with 40 voxel minimum cluster size, and determined following anatomical landmarks on the mean T₁ image normalized to a DARTEL template.

**Regions were small-volume corrected (p_FWE-SVC < 0.01) in the a priori defined regions of interest.