Summary of fMRI findings for three contrasts of interest
| Region | Hemisphere | Brodmann area | MNI coordinates | T values/z values of maxima (cluster size in number of voxels) | ||
|---|---|---|---|---|---|---|
| X | Y | Z | ||||
| Low complexity > high complexity (masked exclusively by 200 > 0 ms) | ||||||
| IFG (tri/orb) | L | 45/47 | −40 | 30 | −3 | 5.70/5.38 (211) |
| STG | L | 22/38 | −50 | 4 | −7 | 5.53/5.23 (159) |
| STG/TP | R | 38 | 50 | 8 | −11 | 5.24/4.98 (79) |
| 200 > 0 ms (masked exclusively by high complexity > low complexity) | ||||||
| Pre-SMA/MedFG/SFG/Cing | L + R | 6/32 | 6 | 14 | 47 | 5.93/5.57 (136) |
| MFG/PrecG | L | 6 | −30 | −2 | 55 | 5.70/5.38 (452) |
| MFG/PrecG/IFG (Oper/Tri) | R | 9/8/6 | 46 | 32 | 37 | 5.55/5.25 (929) |
| Conjunction: (low complexity > high complexity) Λ (200 > 0 ms) | ||||||
| Pre-SMA/SFG(medial) | L + R | 8/6/32 | 2 | 28 | 47 | 5.57/5.27 (599) |
| IPL | L | 40/7 | −30 | −50 | 45 | 5.01/4.78 (160) |
| Ins/IFG(tri/orb) | L | 47/45 | −34 | 30 | 1 | 4.95/4.73 (91) |
Spatial coordinates, anatomic locations, and cluster size of the local maxima in the group analysis, showing significant activations (height-threshold p = 0.0001, extent-threshold p = 0.05, FWE-corrected for multiple comparisons). CinG = cingulate gyrus, IFG = inferior frontal gyrus, Ins = insula, IPL = inferior parietal lobule, L = left hemisphere, MedFG = medial frontal gyrus, MFG = middle frontal gyrus, Oper = opercularis, PrecG = precentral gyrus, R = right hemisphere, SFG = superior frontal gyrus, STG = superior temporal gyrus, TP = temporal pole, tri = triangularis.