Table 2.

Linear parametric activation clusters for friends and kin across different social network levels

	Cluster size	Local Maxima z value	Cluster P (corrected)	MNI local maxima
				x	y	z
Friends: negative activation
Bilateral somatosensory cortices	11,735		<0.0001
Right sensorimotor cortex (finger)		4.39		50	−26	44
Right sensorimotor cortex		4.09		32	−9	62
Left sensorimotor cortex		4.14		−24	−8	50
Bilateral lingual gyri	10,909
Left lingual gyrus		4.11		−14	−66	−4
Right lingual gyrus		3.97		16	−64	10
Right cerebellum (motor)		3.94		26	−52	−22
Right retrosplenial cortex		3.92		16	−56	4
Bilateral prefrontal cortices	4123		<0.001
Left ventral media prefrontal cortex		4.15		−4	56	2
Right ventral media prefrontal cortex		3.94		10	56	0
Left thalamus		3.71		−8	−14	−2
Kin: positive activation
Precuneus and posterior cingulate	4598		<0.001
Right precuneus		4.79		8	−70	38
Left precuneus		4.35		−4	−76	42
Right PCC		4.67		4	−38	30
Left PCC		4.14		−2	−26	26

Note: Total cluster size (in voxels) alongside the corresponding corrected significance level, as well as local maxima at various regional sub-peaks with z scores (coordinates reported in Montreal Neurological Institute [MNI] space). Cluster thresholding was applied at a z threshold of 2.3 (P < 0.05).