Neurobiology of Language and Bilingualism

The human brain handles language through a distributed network of regions that manage everything from parsing sentence structure to retrieving word meanings and switching between languages in bilingual speakers. Functional neuroimaging has revealed how areas like Broca's and Wernicke's regions coordinate during speech comprehension and production, while studies of aphasia — language loss following brain injury — have helped clarify which parts of this network are truly indispensable. Researchers are now working to understand how a bilingual brain keeps two languages organized without constant interference, and how cognitive control mechanisms arbitrate between them in real time. A deeper understanding of these processes could improve rehabilitation for patients with acquired language disorders and sharpen theories of how meaning and grammar are represented in neural tissue.

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Keywords

Language ProcessingSemantic MemoryBilingualismNeural BasisCognitive ControlSpeech Comprehension