Table 4.

Significant regional correlations with participants’ scores on passionate love, romantic love, IOS, friendship-based love and sexual frequency

Brain region	Left				Right
	x	y	z	P	x	y	z	P
PLS correlation (love items)
VTAa	−2	−12	−8	0.00	0	−14	−8	0.01
Caudate body, mediala					12	16	8	0.01
Caudate body, antero dorsala	−20	4	18	0.00
Caudate body, postero dorsala					18	−18	20	0.01
Putamenb	−20	2	6	0.00
Posterior hippocampusb					36	−38	0	0.01
PLS correlation (obsession)
Caudate body, mediala					12	16	8	0.05
Septum/fornixa	−2	0	16	0.04
Posterior cingulatea					6	−52	12	0.05
Posterior hippocampusb					36	−38	−2	0.01
Eros scale correlation
VTAa					0	−12	−6	0.05
Caudate body, mediala					16	−20	−8	0.01
Caudate body, postero dorsala					16	−12	18	0.01
Posterior cingulatea					8	−52	16	0.00
Posterior hippocampusb					36	−34	2	0.05
IOS correlation (Partner minus CF scores)
VTA/SNa					2	−12	−14	0.03
Mid-insulab,c					40	12	−6	0.02
Anterior cingulateb,c	−8	22	40	0.04
FBLS correlation
GPc					18	−4	2	0.02
Insular cortexb,c	−42	4	4	0.03
Parahippocampal gyrusb					26	−44	−8	0.00
Sexual frequency correlation
Posterior hippocampusb	−34	−34	−2	0.01
Hypothalamus, posterior					11	−1	−9	0.03

Note. All results are for the Partner vs HFN contrast, except for the correlation with the IOS, which used the Partner vs CF contrast. ROIs were identified as the highest intensity voxel in a cluster. MNI coordinates (x, y, z) are at the maximum value for the cluster, which may be elongated in any direction. P-values (P) are for FDR correction. All results are for regions showing greater brain activation associated with higher scores on the: PLS love items, PLS obsession items, Eros Scale, IOS Scale, FBLS, and sexual frequency (controlling for age). Letters indicate origin of regions of interest^.

^aROI based on results by Aron et al. (2005) for early stage romantic love.

^bROI based on results by Bartels and Zeki (2000) for early stage romantic love.

^cROI based on results by Bartels and Zeki (2004) for maternal love.