Table 3.

Brain Regions Showing Activation During the Go Trials (Compared to Fixation) in the OSA Group

Anatomic location	Region (Brodmann area)	Volume (mm3)	Center			Max Eta-Sq
			X	Y	Z
Superior frontal gyrus	B (9)	8000	4	52	25	0.67
	L (8)	1728	24	25	49	0.69
Medial frontal gyrus	B (6) + R (8)	7140	0	1	57	0.81
Middle frontal gyrus	R (6)	2240	−37	−2	51	0.78
Inferior frontal gyrus	R (9)	2122	−45	6	31	0.75
	L (6) + precentral gyrus	1216	42	2	30	0.70
Precentral and postcentral gyrus	L (3, 4)	14272	38	−20	52	0.85
	L (6)	576	45	−11	31	0.61
Posterior cingulate	B (23/31)	33216	0	−50	23	0.82
insula	R (13)	1600	−38	17	5	0.66
	R	832	−37	−17	17	0.76
Inferior parietal lobule	R (40)	5760	−37	−50	42	0.79
	L	896	46	−26	28	0.63
Precuneus	L	2176	25	−58	42	0.70
Superior temporal gyrus	R (22)	832	−59	−37	16	0.60
Middle temporal gyrus	L (39)	3584	41	−73	27	0.75
Middle occipital gyrus	L (37)	1664	43	−67	3	0.77
	R (37)	704	−34	−67	8	0.74
Cerebellum	R culmen	5760	−19	−55	−17	0.78
	R pyramis	1536	−5	−74	−28	0.74
	L declive	1216	27	−64	−21	0.57

Regions of decreased activation are in italics. OSA refers to obstructive sleep apnea; R, right; L, left; B, bilateral.