Table A5.

Whole-brain analysis Results.

	Brain Region	Cluster No.	No. of Voxels	Peak z Value	MNI Co-Ordinates of Peak
Portion trials					x	y	z
	Group mean (n = 20)
	Occipital Fusiform Gyrus (10.4%)	5	8690	5.07	50	−60	−18
	Precentral Gyrus (19.2%); Postcentral Gyrus (30.3%)	4	970	4.58	−34	−34	46
	Left Putamen (51.6%)	3	277	4.42	−26	−8	6
	Cingulate Gyrus, posterior division (71.4%)	2	189	4.38	0	−30	34
	Superior Parietal Lobule (43.9%)	1	94	3.73	−32	−54	66
	Normal > Slow
	Cuneal cortex (49.0%)	1	236	4.16	−4	−86	32
	Slow > Normal	0
Interval trials	Group mean (n = 20)
	Intracalcarine Cortex (10.2%); Lingual Gyrus (14.9%); Occipital Fusiform Gyrus (12.0%)	4	2713	5.26	8	−88	−2
	Precentral Gyrus (18.1%); Postcentral Gyrus (30.1%)	3	1677	4.91	−40	−22	54
	Juxtapositional Lobule Cortex (formerly Supplementary Motor Cortex) (43.0%); Paracingulate Gyrus (17.6%)	2	529	4.14	8	4	58
	Left Putamen (92.0%)	1	109	4.13	−30	−6	2
	Normal > Slow	0
	Slow > Normal	0
Spatial trials	Group mean (n = 20)
	Peak in Lateral Occipital Cortex, superior division (15.2%), extends to occipital fusiform gyrus, temporal fusiform cortex, superior parietal lobule, and lingual gyrus	1	10554	5.65	34	−64	−8
	Normal > Slow	0
	Slow > Normal	0
Portion RT trials	Group mean (n = 20)
	Middle Frontal Gyrus (23.9%); Precentral Gyrus (13.2%)	1	90	3.82	−32	−2	54
	Normal > Slow	0
	Slow > Normal
	Postcentral Gyrus (41.2%); Supramarginal Gyrus, anterior division (21.4%)	1	105	3.86	52	−28	42
Interval RT trials	Group mean (n = 20)	0
	Normal > Slow	0
	Slow > Normal	0
Spatial RT trials	Group mean (n = 20)
	Inferior Frontal Gyrus, pars triangularis (19.3%); Inferior Frontal Gyrus, pars opercularis (19.4%)	2	298	3.89	−50	36	2
	Middle frontal gyrus	1	97	3.94	−44	20	26
	Normal > Slow	0
	Slow > Normal	0