کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7268809 1473172 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Beyond the bilingual advantage: The potential role of genes and environment on the development of cognitive control
ترجمه فارسی عنوان
فراتر از مزیت دو زبانه: نقش بالقوه ژن ها و محیط زیست بر توسعه کنترل شناختی
کلمات کلیدی
عوامل ژنتیکی و محیطی، دو زبانه، کنترل شناختی،
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب شناختی
چکیده انگلیسی
In recent years there has been considerable debate about the presence or absence of a bilingual advantage in tasks that involve cognitive control. Our previous work has established evidence of differences in brain activity between monolinguals and bilinguals in both word learning and in the avoidance of interference during a picture selection task. Recent models of cognitive control have highlighted the importance of a set of neural structures that may show differential tuning due to exposure to two languages. There is also evidence that genetic factors play a role in the availability of dopamine in neural structures involved in cognitive control. Thus, it is important to investigate whether there are interactions effects generating variability in language acquisition when attributed to genetic (e.g., characteristics of dopamine turnover) and environmental (e.g., exposure to two languages) factors. Here preliminary results from genotyping of a sample of bilingual and monolingual individuals are reported. They reveal different distributions in allele frequencies of the DRD2/ANKK1 taq1A polymorphism. These results bring up the possibility that bilinguals may exhibit additional flexibility due to differences in genetic characteristics relative to monolinguals. Future studies should consider genotype as a possible contributing factor to the development of cognitive control across individuals with different language learning histories.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Neurolinguistics - Volume 35, August 2015, Pages 109-119
نویسندگان
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