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Language proficiency does not modulate executive control in older bilinguals.
Aging, Neuropsychology, and Cognition ( IF 1.6 ) Pub Date : 2018-12-30 , DOI: 10.1080/13825585.2018.1562029
Ramesh Kumar Mishra 1 , Manasa Padmanabhuni 1 , Pratik Bhandari 2 , Shiji Viswambharan 1 , Seema Gorur Prasad 1
Affiliation  

We examined if language proficiency modulates performance in tasks that measure executive control in older Telugu-English bilinguals (n = 50, mean age = 57.15 years). We administered numerical Stroop task, Attention Network Task, Dimensional Change Card Sorting task, and stop-signal task that are known to tap into different aspects of executive functioning on healthy aging Telugu-English bilinguals. Second language (English) proficiency was calculated as a cumulative score that considered both subjective and objective measures of L2 fluency and use. Bilinguals were divided into two groups based on the cumulative score and compared on each task. We did not find any effect of language proficiency on any of the executive control measures. The additional Bayesian analysis also supported these findings. Therefore, the results do not support the claim that bilingual language proficiency modulates executive control, at least in the elderly population. We discuss the results with regard to the issue of bilingual advantage in executive control and the role of age and language use.

中文翻译:

语言能力不会影响老年双语者的执行控制。

我们检查了语言水平是否会影响衡量泰卢固语-英语双语(n = 50,平均年龄= 57.15岁)的执行控制的任务的绩效。我们执行了数值Stroop任务,Attention Network任务,Dimensional Change Card Sorting任务和Stop-Signal任务,这些任务可以利用健康衰老的泰卢固语-英语双语者的执行功能的不同方面。第二语言(英语)熟练度的计算方式为累积分,考虑了L2流畅度和使用的主观和客观指标。根据累积分数,将双语者分为两组,并根据每个任务进行比较。我们发现语言熟练度对任何执行控制措施均无影响。其他贝叶斯分析也支持这些发现。因此,结果并不支持双语语言能力至少在老年人口中调节执行控制的说法。我们讨论了在执行控制中的双语优势问题以及年龄和语言使用的作用方面的结果。
更新日期:2019-11-01
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