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Table 2. 

Brain Regions Showing Significant Change in Activity between the Two Production Modes

RegionsHBAMNI CoordinatesFContrast Estimates
Overt ModeCovert Mode
xyzSO-1SO-2AO-1AO-2SY-1SY-2SO-1SO-2AO-1AO-2SY-1SY-2
Cluster 1 (5548 Voxels) 
Primary sensorimotor cortex −50 −12 30 352.26 0.30 0.30 0.33 0.32 0.29 0.25 0.01 0.01 0.02 −0.01 −0.04 −0.01 
Transverse temporal gyrus 41 −52 −24 10 88.02 0.12 0.12 0.20 0.19 0.28 0.22 −0.02 −0.03 −0.07 −0.07 −0.10 −0.06 
Transverse temporal gyrus 42 −38 −32 16 87.49 0.09 0.09 0.17 0.15 0.18 0.14 −0.03 −0.01 −0.05 −0.05 −0.07 −0.03 
Parietal operculum 40/43 −50 −14 81.09 0.11 0.11 0.16 0.16 0.23 0.17 −0.01 0.00 −0.02 −0.02 −0.05 −0.02 
Inferior parietal cortex 40 −58 −36 16 55.80 0.11 0.10 0.16 0.15 0.19 0.17 0.00 0.02 0.00 −0.01 −0.03 0.00 
 
Cluster 2 (4467 Voxels) 
Primary sensorimotor cortex 50 −8 32 305.86 0.33 0.34 0.37 0.37 0.34 0.30 0.00 0.00 0.01 −0.01 −0.05 −0.02 
Parietal operculum 40/43 64 −8 20 132.04 0.15 0.18 0.20 0.22 0.17 0.14 0.00 0.01 0.00 0.00 −0.04 −0.01 
Transverse temporal gyrus 41 50 −16 87.27 0.10 0.15 0.19 0.20 0.25 0.17 0.01 0.00 −0.01 −0.01 −0.05 −0.03 
Inferior parietal cortex 40 52 −30 22 75.15 0.14 0.16 0.15 0.16 0.15 0.14 0.00 0.01 −0.02 −0.02 −0.04 −0.02 
Premotor cortex 46 −8 56 34.95 0.14 0.16 0.17 0.17 0.14 0.11 0.02 0.03 0.01 0.00 −0.01 0.01 
Superior temporal gyrus 22 48 −28 −2 29.67 0.04 0.01 0.08 0.06 0.14 0.09 0.00 −0.02 −0.01 −0.01 −0.01 −0.01 
 
Cluster 3 (123 Voxels) 
SMA L/R −6 48 57.91 0.15 0.16 0.17 0.15 0.19 0.11 −0.01 −0.01 0.01 −0.03 −0.03 −0.01 
Middle cingulate cortex L/R 32 −4 −6 40 52.84 0.05 0.05 0.10 0.05 0.16 0.07 −0.04 −0.07 −0.02 −0.05 −0.04 −0.04 
 
Cluster 4 (84 Voxels) 
Calcarine gyrus 18 14 −66 12 34.49 0.08 0.05 0.10 0.07 0.13 0.08 −0.03 −0.02 −0.01 −0.06 −0.01 −0.01 
 
Cluster 5 (70 Voxels) 
Cerebellum (lobule VI)  −16 −66 −20 40.97 0.16 0.17 0.12 0.18 0.15 0.11 0.02 0.01 0.01 −0.01 0.00 0.00 
 
Cluster 6 (48 Voxels) 
Calcarine gyrus 17 −8 −74 12 32.74 0.09 0.06 0.11 0.08 0.15 0.08 −0.02 −0.02 −0.01 −0.04 0.00 −0.02 
 
Cluster 7 (31 Voxels) 
Cerebellum (lobule VI)  12 −68 −14 31.99 0.12 0.10 0.12 0.15 0.18 0.13 0.01 0.00 0.00 0.01 0.01 0.01 
RegionsHBAMNI CoordinatesFContrast Estimates
Overt ModeCovert Mode
xyzSO-1SO-2AO-1AO-2SY-1SY-2SO-1SO-2AO-1AO-2SY-1SY-2
Cluster 1 (5548 Voxels) 
Primary sensorimotor cortex −50 −12 30 352.26 0.30 0.30 0.33 0.32 0.29 0.25 0.01 0.01 0.02 −0.01 −0.04 −0.01 
Transverse temporal gyrus 41 −52 −24 10 88.02 0.12 0.12 0.20 0.19 0.28 0.22 −0.02 −0.03 −0.07 −0.07 −0.10 −0.06 
Transverse temporal gyrus 42 −38 −32 16 87.49 0.09 0.09 0.17 0.15 0.18 0.14 −0.03 −0.01 −0.05 −0.05 −0.07 −0.03 
Parietal operculum 40/43 −50 −14 81.09 0.11 0.11 0.16 0.16 0.23 0.17 −0.01 0.00 −0.02 −0.02 −0.05 −0.02 
Inferior parietal cortex 40 −58 −36 16 55.80 0.11 0.10 0.16 0.15 0.19 0.17 0.00 0.02 0.00 −0.01 −0.03 0.00 
 
Cluster 2 (4467 Voxels) 
Primary sensorimotor cortex 50 −8 32 305.86 0.33 0.34 0.37 0.37 0.34 0.30 0.00 0.00 0.01 −0.01 −0.05 −0.02 
Parietal operculum 40/43 64 −8 20 132.04 0.15 0.18 0.20 0.22 0.17 0.14 0.00 0.01 0.00 0.00 −0.04 −0.01 
Transverse temporal gyrus 41 50 −16 87.27 0.10 0.15 0.19 0.20 0.25 0.17 0.01 0.00 −0.01 −0.01 −0.05 −0.03 
Inferior parietal cortex 40 52 −30 22 75.15 0.14 0.16 0.15 0.16 0.15 0.14 0.00 0.01 −0.02 −0.02 −0.04 −0.02 
Premotor cortex 46 −8 56 34.95 0.14 0.16 0.17 0.17 0.14 0.11 0.02 0.03 0.01 0.00 −0.01 0.01 
Superior temporal gyrus 22 48 −28 −2 29.67 0.04 0.01 0.08 0.06 0.14 0.09 0.00 −0.02 −0.01 −0.01 −0.01 −0.01 
 
Cluster 3 (123 Voxels) 
SMA L/R −6 48 57.91 0.15 0.16 0.17 0.15 0.19 0.11 −0.01 −0.01 0.01 −0.03 −0.03 −0.01 
Middle cingulate cortex L/R 32 −4 −6 40 52.84 0.05 0.05 0.10 0.05 0.16 0.07 −0.04 −0.07 −0.02 −0.05 −0.04 −0.04 
 
Cluster 4 (84 Voxels) 
Calcarine gyrus 18 14 −66 12 34.49 0.08 0.05 0.10 0.07 0.13 0.08 −0.03 −0.02 −0.01 −0.06 −0.01 −0.01 
 
Cluster 5 (70 Voxels) 
Cerebellum (lobule VI)  −16 −66 −20 40.97 0.16 0.17 0.12 0.18 0.15 0.11 0.02 0.01 0.01 −0.01 0.00 0.00 
 
Cluster 6 (48 Voxels) 
Calcarine gyrus 17 −8 −74 12 32.74 0.09 0.06 0.11 0.08 0.15 0.08 −0.02 −0.02 −0.01 −0.04 0.00 −0.02 
 
Cluster 7 (31 Voxels) 
Cerebellum (lobule VI)  12 −68 −14 31.99 0.12 0.10 0.12 0.15 0.18 0.13 0.01 0.00 0.00 0.01 0.01 0.01 

Maximum activation peak summary of brain regions showing significant change in activity between the two production modes and contrast estimates in all conditions (bidirectional F contrast; p < .0001 uncorrected at the voxel level).

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