Table 2.

Statistical parametric mapping of significant associations between amygdala NK1 receptor availability, trait anxiety, and extraversion in healthy subjects

NK1 receptor availability	Z	P FWE	Volumea	x	y	z b
Positive association
Trait anxiety
Right amygdala	4.10	0.002	112	30	4	−28
Left amygdala	3.56	0.010	176	−18	−2	−22
Negative association
Extraversion
Right amygdala	3.25	0.026	64	34	−2	−22

^aVolume in mm³, voxel size: 8 mm³

^bPeak voxel coordinates in MNI (Montreal Neurological Institute) space