Table 2.

Regional Changes in Gray Matter Density Between OCD Patients and Healthy Control Subjects^*

	Coordinates			Statistic
OCD > Siblings	X	Y	Z	Z Score	p (FDR-corr)1
Right Putamen	31	4	0	3.99	0.04
Right Putamen	32	0	3	3.85	0.04
OCD < Control	X	Y	Z	Z Score	p (FDR-corr)2
Left Anterior Cingulate Gyrus	−8	46	3	4.43	0.01
Right Medial Superior Frontal Gyrus	12	50	15	3.51	0.01
Left Medial Superior Frontal Gyrus	−4	63	12	3.91	0.01

^*OCD > Controls and OCD < Siblings did not demonstrate any significant differences.

¹Based on small volume correction and

²main comparison.