Table 3.

Cluster peaks for the whole sample effect of increasing difficulty from Medium to Hard.

A. Increased activation from medium to hard cluster-level
	Cluster Label	BA	k	X	Y	Z	t-value	pfwe
R inferior and superior		7	1315	42	−51	54	8.6	<.001
	parietal lobule	7		33	−60	54	8.43
		40		42	−42	42	8.3
R inferior frontal and		9	2220	48	33	21	8.38	<.001
	insula	44		48	9	24	8.32
		13		30	24	−3	7.88
L cerebellum crus 1 & 2			476	−9	−81	−33	8.29	<.001
				−33	−72	−48	7.77
				−30	−66	−30	7.2
R superior medial frontal gyrus		8	432	9	27	45	7.21	<.001
		8		3	33	39	6.98
R lingual gyrus		18	37	18	−87	−6	6.75	0.04
L insular cortex		13	99	−33	21	−3	6.42	0.003
L inferior frontal gyrus		44	53	−57	21	30	5.45	0.019
L middle occipital gyrus		18	35	−36	−93	9	5.09	0.044
L orbitofrontal gyrus		47	41	−45	45	−6	5.06	0.033
L inferior and superior		40	141	−39	−48	48	4.81	0.001
	parietal lobule	39		−33	−57	48	4.79
		7		−21	−66	51	4.6
B. Deceased activation from medium to hard cluster-level
	Cluster Label	BA	k	X	Y	Z	t-value	pfwe
L/R posterior and anterior		18	10811	0	−72	24	10.96	<.001
	medial wall and precuneus	10		−3	57	−3	9.75
		23		9	−57	27	9.29
L middle temporal and		39	1846	−42	−57	21	8	<.001
	angular gyrus	39		−42	−72	36	7.19
		21		−54	−6	−18	6.93
L superior frontal gyrus		8	222	−18	33	42	7.06	<.001
L orbital frontal gyrus		47	69	−27	36	−15	6.31	.014

Note. p<.0001 uncorrected, cluster-level FWE p<.05. BA=Brodmann׳s area.