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Differences in Brain Structure in Deaf Persons on MR Imaging Studied with Voxel-Based Morphometry

D.K. Shibataa

a From the Department of Radiology, University of Washington Medical Center, Seattle, Wash


Figure 1
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  		Fig 1. Deaf versus hearing white matter and gray matter VBM. Threshold at T = 3.7 with extent threshold 100 voxels.


Figure 2
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  		Fig 2. Cross-sections through the left superior temporal gyrus showing the focus of white matter deficit in the deaf group in relation to planum temporale and Heschl gyrus. A and B, crosshairs indicate the gray matter center of the planum temporale at (–60, –20, 10).12 C and D, crosshairs are centered on the gray matter center of Heschl gyrus at (–50, –20, 8).13 Talairach coordinates are transformed into MNI. The color bar represents the T score. "R" indicates right side of brain (radiology convention).


Figure 3
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  		Fig 3. Asymmetry VBM of gray matter in deaf and hearing subjects. Threshold at T = 7.5, extent threshold at 400 voxels.


Figure 4
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  		Fig 4. Asymmetry VBM of white matter in deaf and hearing subjects. T threshold at T = 7.7, extent threshold at 400 voxels.


Figure 5
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  		Fig 5. Deaf versus hearing asymmetry VBM of white matter and gray matter. T threshold at T = 5.7, extent threshold at 200 voxels.


Figure 6
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  		Fig 6. Deaf versus hearing asymmetry VBM of white matter viewed on coronal and axial cross sections. Crosshair at (–50, –18, 11). The color bar represents the T score.





Copyright © 2008 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X