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Table 3. 

Brain Regions Modulated by Task and Complexity

Cluster Location
Cluster
Voxel
MNI
BA
pcorr
Size
puncorr
Z
x
y
z
(A) Main Effect of Task 
L inferior parietal lobule .010 160 <.001 5.28 36 51 48 40 
<.001 5.01 −45 −51 48 40 
L inferior temporal gyrus .001 137 <.001 4.98 42 57 3 37 
<.001 4.30 −48 −57 −12 37 
<.001 3.49 −39 −45 −15 37 
L inferior frontal gyrus (pars triangularis) .006 80 <.001 4.63 36 33 12 47 
<.001 4.23 −48 27 −6 47 
R inferior parietal lobule .005 186 <.001 4.50 39 54 48 40 
<.001 4.35 45 −45 54 40 
<.001 4.27 51 −39 51 40 
R STG and MTG .013 95 <.001 4.39 66 36 6 22 
<.001 4.26 69 −30 −9 21 
<.001 3.69 54 −42 15 42 
 
(B) Main Effect of Complexity 
L inferior frontal gyrus pars opercularis .069 28 <.001 4.00 54 12 9 44 
 
(C) Interaction: Task × Complexity 
R Heschl's and STG .001 166 <.001 4.35 51 27 9 22 
<.001 3.86 60 −18 12 22 
<.001 3.74 42 −15 41 
L Heschl's and STG .036 43 <.001 3.91 48 36 18 42 
<.001 3.42 −54 −33 −9 21 
<.001 3.20 −51 −33 22 
Cluster Location
Cluster
Voxel
MNI
BA
pcorr
Size
puncorr
Z
x
y
z
(A) Main Effect of Task 
L inferior parietal lobule .010 160 <.001 5.28 36 51 48 40 
<.001 5.01 −45 −51 48 40 
L inferior temporal gyrus .001 137 <.001 4.98 42 57 3 37 
<.001 4.30 −48 −57 −12 37 
<.001 3.49 −39 −45 −15 37 
L inferior frontal gyrus (pars triangularis) .006 80 <.001 4.63 36 33 12 47 
<.001 4.23 −48 27 −6 47 
R inferior parietal lobule .005 186 <.001 4.50 39 54 48 40 
<.001 4.35 45 −45 54 40 
<.001 4.27 51 −39 51 40 
R STG and MTG .013 95 <.001 4.39 66 36 6 22 
<.001 4.26 69 −30 −9 21 
<.001 3.69 54 −42 15 42 
 
(B) Main Effect of Complexity 
L inferior frontal gyrus pars opercularis .069 28 <.001 4.00 54 12 9 44 
 
(C) Interaction: Task × Complexity 
R Heschl's and STG .001 166 <.001 4.35 51 27 9 22 
<.001 3.86 60 −18 12 22 
<.001 3.74 42 −15 41 
L Heschl's and STG .036 43 <.001 3.91 48 36 18 42 
<.001 3.42 −54 −33 −9 21 
<.001 3.20 −51 −33 22 

Note that F contrasts testing main effects and interactions are one sided and do not indicate direction. For details, see Results section and post hoc plots showing separate effects in Figures 2 and 3. pcorr cluster-level statistic corrected using random field theory. Whole cluster and peak voxel statistics are presented in boldface; secondary peaks >8 mm apart are presented in plain text. MNI = Montreal Neurological Institute coordinates; BA = Brodmann's area; MTG = middle temporal gyrus; STG = superior temporal gyrus.

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