Table 2.

Areas of significant brain activation for the analysis the N-Back task, separately for each Group.

Analysis of N-Back task, separated by Group
			BA	X	Y	Z	Voxels	F Stat.
	Fatigue
Group: TBI	Caudate/Caudate Tail		—	−19	−25	16	36	12.96
	Posterior Cingulate		23	9	−39	24	247	16.32
	Superior Temporal Gyrus		39	−41	−51	12	109	17.8
	Task x Fatigue
	Anterior Cingulate		24	−7	31	6	265	19.39
	Caudate/Caudate Body		—	13	−13	22	286	18.38
	Caudate Tail/Posterior Cingulate		30	−21	−47	14	236	15.33
	Insula		13	−37	−25	18	273	21.75
	Precentral Gyrus		4	−19	−21	56	702	17.52
	Posterior Cingulate		30	23	−61	12	156	13.54
	Precuneus		7	27	−47	42	371	17.67
	Inferior Parietal Lobule		40	39	−33	38	343	22.81
	Task X Fatigue
Group: HC	Middle Frontal Gyrus		10	37	43	24	345	17.62
	Middle Frontal Gyrus		6	−27	−5	58	312	8.15
	Middle Frontal Gyrus		6	23	1	50	249	7.29
	Medial/Superior Frontal Gyrus		10	−19	45	2	2053	9.02
	Medial Frontal Gyrus, extending into right caudate head		32	−9	13	44	1756	8.73
	Inferior Frontal Gyrus		9	59	9	28	635	7.69
	Caudate/Caudate Head		—	3	1	6	564	11.46
	Caudate/Caudate Tail		—	−15	−31	20	36	9.95
	Thalamus/Pulvinar		—	−25	−25	4	125	7.9
	Thalamus		—	7	−23	2	219	13.63
	Insula		13	−43	−5	18	776	7.11
	Insula		13/22	41	−27	2	567	7.76
	Precental Gyrus		6	−43	−7	44	437	7.55
	Inferior Parietal Lobule		40	37	−39	48	558	7.77
	Middle Occipital Gyrus		19/37	43	−71	4	382	8.85
	Fusiform Gyrus		37	37	−53	−16	191	12.72
	Lingual Gyrus		18	−31	−71	−10	2154	14.24

‘BA’ denotes Broadman’s Area; ‘X’, ‘Y’, and ‘Z’ denote the location in Talairach space of the voxel in the cluster with the highest activation; ‘Voxels’ denotes the number of voxels in each cluster; ‘F-Stat.’ denotes the F-statistic associated with the voxel of highest activation.