The influence of the place-value structure of the Arabic number ...

Table 3: Brain areas activated by bisection range (all p < 0.001, voxelwise uncorrected)
Large range > small range
Region
Talairach coordinates
x, y, z
t-value
df=16
Right intraparietal cortex 50, -33, 49 8.26 40 263
Right intraparietal cortex 35, -53, 52 7.79 7 -
Left posterior intraparietal cortex -9, -73, 48 8.56 7 276
Left anterior intraparietal cortex -50, -36, 46 4.85 40 10
Right extrastriate cortex 30, -71, 39 9.26 19 29
Right striate cortex 39, -90, 2 4.75 18 26
Left extrastriate cortex -27, -71, 39 7.27 19 76
Left temporo-occipital juction -39, -68, -12 6.31 19/37 50
Left striate cortex -36, -82, -11 5.26 18 16
Right supplementary motor area 6, 20, 43 10.97 8 44
Left supplementary motor area -3, 17, 49 10.33 8 29
Right premotor cortex 30, 14, 44 8.44 6 52
Left premotor cortex -24, 12, 50 7.55 6 104
Right dorsolateral prefrontal cortex 50, 31, 34 5.62 9/46 23
Left dorsolateral prefrontal cortex -45, 4, 27 8.81 9 110
Right homologue of Broca`s area 42, 20, 2 4.74 45 18
Right ventrolateral prefrontal cortex 39, 17, -6 7.22 47 27
Left ventrolateral prefrontal cortex -30, 20, -4 5.14 47 19
Small range > large range
Anterior cingulate -3, 46, -10 8.06 32 363
Right dorsolateral prefrontal cortex 18, 32, 51 7.52 9 13
Retrosplenial cortex -3, -45, 33 8.53 7/31 234
BA
Cluster
size k
Small Problem size > large problem size: The left inferior parietal cortex and to a
smaller extent the right inferior parietal cortex exhibited increased fMRI signal as a result of
small problem size. (Figure 1C, Table 5). In the left hemisphere, a small cluster of activation
was present projecting from the inferior to the superior parietal cortex.
Small distance to the mean > large distance to the mean: When distance to the mean
decreased, stronger fMRI signal was observed in the following regions: Left anterior
intraparietal cortex, posterior intraparietal and neighbouring extrastriate cortex bilaterally,
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