Table 3 Functional connectivity of the left dorsal caudate co-varying with oxytocin and left striatal dopamine transporter levels in healthy controls.

						Peak coordinate
Direction	Region	Lateral	Cluster	BA	t score	x	y	z
Oxytocin level^a
Negative	Posterior parietal cortex	L	6206	7	5.04	−28	−48	56
	Dorsolateral prefrontal cortex	L	141	10	3.95	−34	58	12
	Lingual gyrus	L	348	18	4.42	−14	−72	−4
	Lingual gyrus	R	298	19	4.06	16	−62	0
	Superior occipital gyrus	R	161	19	3.96	18	−82	32
Positive	Cerebellum (Crus II)	L	167	–	5.10	−32	−82	−42
Striatal DAT availability^b
Negative	Posterior parietal cortex	L	395	7	4.46	−24	−66	58
Positive	Cerebellum (Crus II)	L	763	–	5.77	−14	−88	−38
	Cerebellum (Crus II)	R	180	–	4.55	50	−60	−50

Peak coordinates refer to the Montreal Neurological Institute (MNI) space. Significance was thresholded at the uncorrected voxel level p = 0.001, followed by the FWE-corrected cluster level p = 0.05.
No correlation was found in the bipolar disorder (BD) II patients.
BA Brodmann area.
^aFour BD II patients and eight controls did not have the plasma oxytocin level recorded and were excluded from this analysis.
^bTwo BD II patients did not undergo TRODAT and were excluded from this dopamine transporter (DAT) availability calculation.

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