Table 1.
Brain regions activated when listening in silence for detecting a sound
|
|
MNI coordinates for tmax |
|
|
||||
|---|---|---|---|---|---|---|---|
| Side and region (Brodmann's area) |
x
|
y
|
z
|
tmax
|
Cluster size |
||
| Frontal | |||||||
| R precentral/inferior frontal gyrus (BA 44/6) | 52 | 19 | 33 | 5.97 | 498 | ||
| R middle frontal/inferior frontal gyrus (BA 46/45) | 49 | 37 | 23 | 6.47 | 137 | ||
| L anterior insula/inferior frontal gyrus (BA 47/13) | -38 | 13 | 1 | 5.33 | 171 | ||
| R anterior insula/inferior frontal gyrus (BA 47/ BA 13) | 37 | 19 | 5 | 6.69 | 383 | ||
| Median cingulate/supplementary motor area (BA 6/32) | -2 | 22 | 37 | 4.96 | 77 | ||
| Supplementary motor area (BA 6/32) | 4 | 10 | 51 | 7.84 | 444 | ||
| Temporal | |||||||
| L superior temporal gyrus (BA 41/42/22) | -50 | -26 | 9 | 5.75 | 364 | ||
| R superior temporal gyrus (BA 41/42/22) | 64 | -32 | 12 | 4.87 | 57 | ||
| Parietal | |||||||
| L angular/supramarginal gyrus (BA 40/39) | -50 | -62 | 29 | 9.13 | 292 | ||
| Subcortical | |||||||
| L thalamus | -11 | -20 | 15 | 4.48 | 64 | ||
| L caudate nucleus | -8 | 1 | 9 | 7.01 | 332 | ||
| R caudate nucleus |
10 |
1 |
12 |
9.22 |
588 |
||
Results are derived from a mixed-effect analysis (11 subjects), and the clusters correspond to the contrast listening in silence versus resting state. x, y, and z correspond to the stereotaxic coordinates (in millimeters) in the Montreal Neurological Institute (MNI) reference brain provided with SPM2. The statistical map is thresholded at t = 3.17, which corresponds to p < 0.01. All tmax values (the maximum value of t among the voxels of the cluster) correspond to p < 0.001 (t(0.001) = 4.58). Cluster size represents the number of contiguous voxels showing significant activation (2 × 2 × 2 mm voxels). R, Right; L, left; BA, Brodmann's area.