TECO
Joined: 20 Jan 2003
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 Posted: Fri Oct 16, 2009 3:49 am Post subject: Brain Probes Map Language Area |
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Recent article here that may be of interest to students of SLA: Brain Mapped for Language & Speech. It makes sense then that when Broca's Area is damaged, speech and language functions will often be impaired.
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The research found that the different language processes the scientists tested were in separate but partly overlapping locations within Broca's area. They found that the brain's computation of vocabulary, grammar and articulation took place very quickly: roughly 200, 320 and 450 milliseconds, respectively.
"We showed that distinct linguistic processes are computed within small regions of Broca's area, separated in time and partially overlapping in space," said Ned Sahin of UCSD, first author on the study, which appeared this week in the journal Science.
Sahin said the research dispels some notions that are still taught in medical textbooks, such as the idea that Broca's area is only involved in speaking, while reading and hearing are handled in a different part of the brain.
"Our task involved both reading and speaking, and we found that aspects of word identity, grammar and pronunciation are all computed within Broca's area," he said. |
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