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Table 1. 

Activation Peaks and Cluster Extensions of the MG, FG, and NG Conditions against Baseline (Fixation Cross)

Anatomical Region
Cluster Extent
Hemisphere
BA
Coordinates
t
No. Voxels
x
y
z
Metaphoric Coverbal Gestures (MG) 
Superior temporal gyrus MTG, IFG 42 59 −19 14.96 603 
Middle temporal gyrus STG, IFG 21 −51 −17 9.60 720 
Premotor cortex  −40 11 55 6.98 24 
Postcentral gyrus  4, 5 −39 68 6.07 31 
Premotor cortex   11 66 5.31 27 
Hippocampus  28 16 −12 −16 5.31 27 
Hippocampus MTL 34 −20 −9 −16 5.08 67 
 
Free Coverbal Gestures (FG) 
Middle temporal gyrus bilateral TL, OL, IFG, and MTL (incl. HC) 21 59 −20 −6 13.08 2648 
Postcentral gyrus Parietal lobe −39 72 7.64 298 
Medial frontal cortex Premotor cortex 51 10 47 6.92 52 
Premotor cortex  −44 10 51 6.66 36 
Premotor cortex  66 6.29 55 
Caudate nucleus   20 −18 19 6.17 31 
 
No Gestures (NG) 
Middle temporal gyrus STG 21 63 −24 −6 9.34 392 
Middle temporal gyrus STG, IFG 21 −55 −20 −6 9.01 408 
Hippocampus MTL 28 −20 −16 −16 6.14 61 
Anatomical Region
Cluster Extent
Hemisphere
BA
Coordinates
t
No. Voxels
x
y
z
Metaphoric Coverbal Gestures (MG) 
Superior temporal gyrus MTG, IFG 42 59 −19 14.96 603 
Middle temporal gyrus STG, IFG 21 −51 −17 9.60 720 
Premotor cortex  −40 11 55 6.98 24 
Postcentral gyrus  4, 5 −39 68 6.07 31 
Premotor cortex   11 66 5.31 27 
Hippocampus  28 16 −12 −16 5.31 27 
Hippocampus MTL 34 −20 −9 −16 5.08 67 
 
Free Coverbal Gestures (FG) 
Middle temporal gyrus bilateral TL, OL, IFG, and MTL (incl. HC) 21 59 −20 −6 13.08 2648 
Postcentral gyrus Parietal lobe −39 72 7.64 298 
Medial frontal cortex Premotor cortex 51 10 47 6.92 52 
Premotor cortex  −44 10 51 6.66 36 
Premotor cortex  66 6.29 55 
Caudate nucleus   20 −18 19 6.17 31 
 
No Gestures (NG) 
Middle temporal gyrus STG 21 63 −24 −6 9.34 392 
Middle temporal gyrus STG, IFG 21 −55 −20 −6 9.01 408 
Hippocampus MTL 28 −20 −16 −16 6.14 61 

Significance level (t value) and size of the respective activation cluster (number of voxels > 20) at p < .05, FDR corrected. Coordinates are listed in Talairach and Tournoux (1988) atlas space. BA is the Brodmann's area nearest to the coordinate and should be considered approximate. Cluster extensions denominate activated regions for larger voxel clusters encompassing different brain areas and should be considered approximate.

OL = occipital lobe; TL = temporal lobe; IFG = inferior frontal gyrus; STG = superior temporal gyrus; MTL = medial temporal lobe; HC = hippocampus.

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