Table 1.

Anatomical description of the statistically significant clusters obtained when contrasting memory and math condition in the a. gamma band and b. high theta band

# Cluster	Size	p	AAL regions	Peak region	Peak t	X	Y	Z
a. Gamma band
1	193	0.0014	R STG R MTG R insula R rolandic operculum R PostCG R Putamen R SMG R STGpole R MTGpole R heschl gyrus R ITG R Pallidum	R STG	6.51	55	−3	−3
2	128	0.0032	L precuneus R precuneus L SPG L IPG L SOG L MCC L cuneus R MCC L MOG	L precuneus	5.68	−3	−55	42
3	54	0.0056	L MCC R MCC L pSFG R pSFG	L MCC	5.29	−3	−10	42
4	19	0.0090	L SMG L IPG L PostCG	L SMG	5.27	−62	−29	36
5	7	0.0130	R Caudate R Thalamus	R Caudate	4.70	16	−3	23
b. High theta band
# Cluster	size	p	AAL regions	peak region	peak t	X	Y	Z
1	37	0.0030	L SPG L PostCG L IPG L precuneus L PreCG	L SPG	7.10	−36	−62	62
2	13	0.0078	R SFG R pSFG	R SFG	4.89	29	−3	68
3	12	0.0080	L pSFG R pSFG L SFG	L pSFG	5.05	−10	−3	74
4	4	0.0120	R SPG R PostCG	R SPG	5.12	29	−55	68

The lists of AAL regions included in a cluster are sorted in a descending order according to their number of point sources within the cluster. Sum of t-values correspond to the summation of the t-values within a cluster. The size corresponds to the number of point sources making up the cluster. The region where the peak t-value is found is given under the peak region column. X, Y and Z are MNI coordinates in mm of the peak. Only regions with more than 1% of their size included in the clusters are listed

Annotations: L left, R Right, STG superior temporal gyrus, MTG middle temporal gyrus, ITG inferior temporal gyrus, PreCG precentral gyrus, PostCG postcentral gyrus, SMG supramarginal gyrus, SPG superior parietal gyrus, IPG inferior parietal gyrus, SOG superior occipital gyrus, MOG middle occipital gyrus, MCC median cingulate cortex, SFG superior frontal gyrus, pSFG posterior superior frontal gyrus