Table 4.
Between-Group Brain Activation Comparisons
Brain region | Side | Cluster size (voxels)* |
Thresholded z-score (FE) |
Unthresholded z-score (ME) |
MNI coordinates (mm) | ||
---|---|---|---|---|---|---|---|
X | Y | Z | |||||
PDAP > Control stimulus-intensity match | |||||||
Inferior parietal lobule | Right | 11,491 | 5.95 | 2.28 | 67 | −26 | 26 |
SII | Right | - | 5.52 | 2.11 | 65 | −24 | 22 |
SI | Right | - | 4.51 | 2.41 | 63 | −13 | 32 |
SII | Left | 10,304 | 4.76 | 1.51 | −65 | −19 | 10 |
Inferior parietal lobule | Left | - | 4.47 | 1.96 | −61 | −23 | 25 |
SI | Left | - | 3.91 | 2.39 | −57 | −7 | 37 |
Premotor cortex | Left | - | 2.99 | 2.04 | −48 | −6 | 57 |
Cerebellum | Right | 628 | 3.95 | 2.19 | 20 | −66 | −19 |
Insula | Right | 479 | 5.07 | 2.05 | 43 | −3 | −12 |
Thalamus | Right | 380 | 3.1 | 1.34 | 12 | −16 | 9 |
Middle frontal gyrus (BA 9) | Right | 312 | 4.17 | 2.09 | 43 | 44 | 33 |
Middle frontal gyrus (BA 10) | Right | 305 | 3.87 | 2.67 | 43 | 52 | 19 |
Insula | Left | 291 | 4.04 | 2.75 | −37 | −5 | −5 |
Caudate | Left | 211 | 3.68 | 2.20 | −16 | 4 | 19 |
Frontal orbital cortex | Left | 177 | 3.69 | 2.40 | −40 | 30 | −7 |
Premotor cortex | Right | 114 | 3.38 | 1.27 | 47 | −15 | 61 |
Superior parietal lobe | Right | 109 | 3.51 | 2.17 | 36 | −44 | 45 |
PDAP > Control subjective-pain match | |||||||
SII | Right | 11,621 | 4.19 | 1.87 | 47 | −7 | 6 |
Premotor cortex | Right | 11,365 | 4.19 | 2.18 | 52 | 9 | 44 |
Inferior frontal gyrus (pars opercularis) | Right | - | 3.81 | 1.80 | 51 | 22 | 26 |
Middle frontal gyrus (BA 9) | Right | 908 | 3.82 | 2.25 | 41 | 45 | 34 |
Insula | Right | 838 | 3.98 | 2.37 | 40 | 3 | −8 |
Medial frontal gyrus (BA 8) | Right | 469 | 3.65 | 2.14 | 4 | 49 | 41 |
Middle frontal gyrus | Right | 248 | 4.05 | 3.70 | 51 | 39 | 16 |
Frontal orbital cortex | Left | 103 | 3.59 | 2.96 | −38 | 30 | −7 |
Voxel size = 1 mm3. Reported only clusters with > 100 voxels.
MNI = Montreal Neurological Institute; FE = fixed-effects; ME = mixed-effects; SI = primary somatosensory cortex; SII = secondary somatosensory cortex; BA = Brodmann area; Shadowed rows: maximum activation within the cluster. White rows: local maxima within the cluster listed above it.