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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 2 of 2 1 Correlated Functional Changes of the Prefrontal Cortex in Twins Induced by Classroom Education of Second Language Sakai, Kuniyoshi L.; Miura, Kunihiko; Narafu, Nobuko; Muraishi, Yukimasa. - : Oxford University Press, 2004 Abstract: As the neural substrates of second language (L2) acquisition are largely unknown, they may or may not be similar to those of first language (L1) representation. We used functional imaging to examine whether training in the conjugation of English verbs from present to past tense alters brain activations in 13-year-old twins. A novel experimental design contrasted past tense verb identification and verb matching, which were tested in either English (L2) or Japanese (L1). After 2 month classroom training in the past tense using bingo games, the two individuals in each pair exhibited significantly correlated performances. When pre- and post-scanning sessions were compared with each other for L2, the left dorsal inferior frontal gyrus (IFG) exhibited significantly correlated activation increases within each pair of twins and the increases were positively correlated with individual performance improvements. Moreover, the cortical plasticity for L2 acquisition was guided toward the L1 specialization of the left dorsal IFG, in spite of notable differences between L1 and L2 in the students' linguistic knowledge and in their performance in making past tense forms. These findings suggest a cortical mechanism underlying L2 acquisition, which critically depends on shared genetic and environmental factors for each twin in a surprisingly predictive manner. Keyword: Article URL: https://doi.org/10.1093/cercor/bhh084 http://cercor.oxfordjournals.org/cgi/content/short/bhh084v1 BASE Hide details 2 Correlated Functional Changes of the Prefrontal Cortex in Twins Induced by Classroom Education of Second Language Sakai, Kuniyoshi L.; Miura, Kunihiko; Narafu, Nobuko. - : Oxford University Press, 2004 BASE Show details

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