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Correspondence
September 2006

Interhemispheric Dissociation of Language Regions in a Healthy Subject

Arch Neurol. 2006;63(9):1344-1346. doi:10.1001/archneur.63.9.1344

The brain is typically organized in such a way that interhemispheric transfer is reduced in favor of intrahemispheric communication.1 Functions such as language that require extensive forward and backward interactions therefore tend to be processed in 1 hemisphere. Herein, we report functional imaging data of a healthy man who showed a rare form of atypical language dominance with an interhemispheric dissociation of anterior (Broca area) and posterior (Wernicke area) language regions (“crossed language dominance”).

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