Tinnitus sufferers perceive a sound in the absence of an external stimulus. Peripheral (inner ear) and central (brain) mechanisms have been postulated. In this study, brain structure of tinnitus sufferers and healthy controls was compared by the use of high-resolution magnetic resonance imaging and voxel-based morphometry. Within the auditory pathways, gray-matter increase was found only in the medial geniculate body. Outside the auditory system, gray-matter decrease was found in the nucleus accumbens. These results suggest critical involvement of both areas in the generation of Tinnitus.
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Tinnitus sufferers perceive a sound in the absence of an external stimulus. Peripheral (inner ear) and central (brain) mechanisms have been postulated. In this study, brain structure of tinnitus sufferers and healthy controls was compared by the use of high-resolution magnetic resonance imaging and voxel-based morphometry. Within the auditory pathways, gray-matter increase was found only in the medial geniculate body. Outside the auditory system, gray-matter decrease was found in the nucleus acc...
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