Table 3. Cerebral activations related to writing compared to drawing.
| Brain region (BA) | Left | Right | ||||||
|---|---|---|---|---|---|---|---|---|
| x | y | z | T-value | x | y | z | T-value | |
| Right-hand writing versus right-handed drawing | ||||||||
| iFG (44/45) | -42 | 28 | -6 | 11.6 | 42 | 28 | -6 | 5.5 |
| Anterior STG (38) | -52 | 10 | -22 | 9.4 | 58 | 4 | -24 | 5.6 |
| PMv (6) | -46 | 18 | 16 | 8.3 | ||||
| PMd (6) | -48 | 0 | 44 | 7.3 | ||||
| Angular gyrus (39) | -54 | -44 | 24 | 5.9 | ||||
| iTG (20) | -50 | -58 | -22 | 6.4 | ||||
| mTG (21) | -60 | -46 | 0 | 10.0 | 48 | -38 | -2 | 6.2 |
| Pre-SMA (6) | 0 | 18 | 52 | 5.4 | ||||
| Basal ganglia / Anterior thalamus | -8 | -2 | 4 | 6.0 | ||||
| Thalamus | -10 | -16 | 8 | 5.5 | ||||
| Cerebellum | 16 | -86 | -32 | 7.0 | ||||
| 14 | -50 | -20 | 5.5 | |||||
| Left-hand writing versus left-hand drawing | ||||||||
| iFG (44/45)* | -40 | 28 | -4 | 9.4 | 34 | 22 | -6 | 6.6 |
| PMv (6) | -48 | 4 | 30 | 9.6 | ||||
| PMd (6) | -52 | -2 | 44 | 8.3 | ||||
| Angular gyrus (39) | -52 | -44 | 22 | 6.6 | ||||
| iTG (20) | -50 | -62 | -14 | 6.4 | ||||
| mTG (21) | -58 | -46 | 2 | 5.4 | ||||
| Pre-SMA (6) | 0 | 4 | 60 | 7.9 | ||||
| Basal ganglia / Anterior thalamus | -8 | 0 | 4 | 6.2 | 8 | 0 | 6 | 5.3 |
| Thalamus | -14 | -4 | -10 | 5.7 | ||||
| Cerebellum | 28 | -64 | -26 | 5.4 | ||||
The coordinates and T-values of local maxima within significant clusters are reported (p<0.05 FWE corrected, with an extended voxel threshold (k) of 8 voxels). Positive x, y and z coordinates indicate respectively coordinates right, anterior and superior of the middle of the anterior commissure. BA = Brodmann area. MNI = Montreal Neurological Institute. sTG = superior temporal gyrus. iFG = inferior frontal gyrus. iTG = inferior temporal gyrus. mTG = middle temporal gyrus. SMA = supplementary motor area.
*The left iFG cluster was confluent with activation in the left anterior STG.