AI Article Synopsis
- This study investigates how different languages are processed in the brain using fMRI, focusing on bilingual subjects who learned a second language at different ages.
- Researchers wanted to determine if the overlapping areas of brain activation indicated different language localization or just variability from repeated tests.
- Results showed that early bilinguals activated more brain regions than late bilinguals while performing word fluency and sentence generation tasks, despite no observable differences in their performance.
Article Abstract
The cerebral localization of multiple languages is a topic of active research. This study presents a method for assessing whether partial overlap of active voxels reflects differential language localization, or simply the variability known to occur with multiple runs of the same task in fMRI studies. Two groups of bilingual subjects (early and later learners of L2) performed word fluency and sentence generation tasks in both languages. The degree of separation for regions of activation did not exceed that associated with run-to-run variability for either task or either group. Early bilinguals, however, showed greater total numbers of active voxels than Late bilinguals for both tasks. This effect occurred despite a lack of a behavioral performance differences by the two groups.
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| http://dx.doi.org/10.1097/00001756-200307010-00007 | DOI Listing |
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