Table A.2.

Correlations between gray matter volume and symptom severity (duration and pain intensity) in patients only. All regions survived a voxel-level height threshold of t = 3.79, and 30 contiguous voxels. Negation direction means lesser gray matter volume was associated with greater illness duration or severity.

Region	MNI			T-score	Voxel Count	Direction	Pearson
Patients correlated with duration:
L dorsolateral prefrontal cortex	−33.0	48	6	−4.89	56	negative	−0.66
Patients correlated with VAS pain:
L posterior hippocampus	−19.5	−33	−4.5	7.01	34	positive	0.83
L amygdala	−27	−4.5	−9	5.93	79	positive	0.81
L postcentral gyrus	−60	−13.5	18	5.14	39	positive	0.85
L dorsolateral prefrontal cortex	−27	45	21	−7.35	208	negative	−0.61
R dorsolateral prefrontal cortex	37.5	48	12	−5.52	41	negative	−0.34
R cerebellum	21	−61.5	−36	−5.41	38	negative	−0.30