Journal
ARCHIVES OF CLINICAL NEUROPSYCHOLOGY
Volume 31, Issue 1, Pages 112-122Publisher
OXFORD UNIV PRESS
DOI: 10.1093/arclin/acv081
Keywords
Language; Brodmann areas; Meta-analysis; Wernicke's area; Broca's area
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The interest in understanding how language is localized in the brain has existed for centuries. Departing from seven meta-analytic studies of functional magnetic resonance imaging activity during the performance of different language activities, it is proposed here that there are two different language networks in the brain: first, a language reception/understanding system, including a core Wernicke's area involved in word recognition (BA21, BA22, BA41, and BA42), and a fringe or peripheral area (extended Wernicke's area: BA20, BA37, BA38, BA39, and BA40) involved in language associations (associating words with other information); second, a language production system ( Broca's complex: BA44, BA45, and also BA46, BA47, partially BA6-mainly its mesial supplementary motor area-and extending toward the basal ganglia and the thalamus). This paper additionally proposes that the insula (BA13) plays a certain coordinating role in interconnecting these two brain language systems.
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