Abstract:
:Few studies have examined the time course of second language (L2) induced neuroplasticity or how individual differences may be associated with brain changes. The current longitudinal structural magnetic resonance imaging study examined changes in cortical thickness (CT) and gray matter volume (GMV) across two semesters of L2 Spanish classroom learning. Learners' lexical processing was assessed via a language decision task containing English and Spanish words. Our findings indicated that (1) CT increased in the left anterior cingulate cortex (ACC) and right middle temporal gyrus (MTG) after L2 learning, (2) CT in the right MTG increased in individuals who were better able to discriminate between native language and L2 words, and (3) CT in the left ACC was correlated with functional connectivity between the ACC and MTG. These findings indicate that L2 lexical development is associated with functional and structural changes in brain regions important for cognitive control and semantic processing.
journal_name
Brain Langjournal_title
Brain and languageauthors
Legault J,Grant A,Fang SY,Li Pdoi
10.1016/j.bandl.2019.104661subject
Has Abstractpub_date
2019-10-01 00:00:00pages
104661eissn
0093-934Xissn
1090-2155pii
S0093-934X(18)30270-0journal_volume
197pub_type
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