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AJNR - American Journal of Neuroradiology

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Reproducibility of Activations in Broca Area with Two Language Tasks: A Functional MR Imaging Study

S. Rau^a, G. Fesl^b, P. Bruhns^b, P. Havel^c, B. Braun^b, J.-C. Tonn^c and J. Ilmberger^a

^a Department of Physical Medicine and Rehabilitation, University Clinics of Munich, Munich, Germany
^b Department of Neuroradiology, University Clinics of Munich, Munich, Germany
^c Department of Neurosurgery, University Clinics of Munich, Munich, Germany

View larger version (46K): [in this window] [in a new window]   Fig 1. Glass-brain maps of the random-effects analysis. For labeling of the activated areas see Table 1. Axial and coronal view: left: left hemisphere; right: right hemisphere; sagittal view: whole-brain activation is visible. A, Naming – rest. B, Naming plus generation – rest.

View larger version (16K): [in this window] [in a new window]   Fig 2. Number of subjects with activation in the opercular part, triangular part, and the insula of the left hemisphere. LIFG indicates left inferior frontal gyrus. A, Naming – rest. B, Naming plus generation – rest.

View larger version (57K): [in this window] [in a new window]   Fig 3. Reproducibility maps for the contrasts (A) naming – rest and (B) generation plus naming – rest. Voxels classified as active in any session or subject (green) and common voxels (color coded with respect to frequency of occurrence according to the color scale). Only activation in the regions of interest (Broca area and left insula) is displayed.