Table 2.

Brain activation results of the fMRI regression analysis with the RT distribution parameter of selective inhibition (i.e., the decrease of the Simon effect across the RT distribution as indexed by the slope) as covariate (for the contrast incongruent > congruent).

	Hemisphere	Voxels	Max T-value	MNI coordinates
				x	y	z
Caudate nucleus	R	47	5.32	6	18	4
	L	42	7.35	− 10	22	− 2

A (sub)maximum with the corresponding coordinates in Montreal Neurological Institute (MNI) space, T-value, and the number of voxels are given.

Activations are significant, based on small volume correction at p < 0.05, family-wise error (FWE) corrected for the search volume using an anatomically defined mask of the dorsal striatum (i.e., caudate nucleus and putamen).

L = left; R = right.