Table 2.

Results from ALE meta-analysis. Foci are reported in Talairach coordinates. `BA' = Brodmann's area.

	Year	Author	Participants	Foci	Go stimuli	No-go stimuli
Simple	2000	Kiehl et al.	14 (7M, 7F)	8	“X”	“K”
	2001	Liddle et al.	16 (9M, 7F)	19	“X”	“A”
	2002	Watanabe et al.	11 (9M, 2F)	5	Red or blue square	Red or blue square
	2003	Mostofsky et al.	48 (24M, 24F)	3	Green spaceship	Red spaceship
	2004	Fassbender et al.	21 (7M, 14F)	21	All numbers except for “3”	“3”
		TOTAL	110 (56M, 54F)	56
Complex	1999	Garavan et al.	14 (8M, 6F)	14	“X” preceded by “Y” or “Y” preceded by “X”	“X” preceded by “X” or “Y” preceded by “Y”
	2002	Garavan et al.	14 (4M, 10F)	16	“X” preceded by “Y” or “Y” preceded by “X”	“X” preceded by “X” or “Y” preceded by “Y”
	2003	Garavan et al.	16 (6M, 10F)	7	“X” preceded by “Y” or “Y” preceded by “X”	“X” preceded by “X” or “Y” preceded by “Y”
	2003	Mostofsky et al.	28 (13M, 15F)	3	Green spaceships and red spaceships preceded by an even number of green spaceships	Red spaceships preceded by an odd number of green spaceships
	2004	Hester et al.	15 (5M, 10F)	21	“X” preceded by “Y” or “Y” preceded by “X”	“X” preceded by “X” or “Y” preceded by “Y”
	2004	Kelly et al.	15 (5M, 10F)	23	“X” preceded by “Y” or “Y” preceded by “X”	“X” preceded by “X” or “Y” preceded by “Y”
		TOTAL	102 (41M, 61F)	84