The neural processing of second language comprehension modulated by the degree of proficiency: a listening connected speech FMRI study.

Q4 Medicine
Open Neuroimaging Journal Pub Date : 2012-01-01 Epub Date: 2012-07-13 DOI:10.2174/1874440001206010044
Isabelle Hesling, Bixente Dilharreguy, Martine Bordessoules, Michèle Allard
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引用次数: 12

Abstract

While the neural network encompassing the processing of the mother tongue (L1) is well defined and has revealed the existence of a bilateral ventral pathway and a left dorsal pathway in which 3 loops have been defined, the question of the processing of a second language (L2) is still a matter of debate. Among variables accounting for the discrepancies in results, the degree of L2 proficiency appears to be one of the main factors. The present study aimed at assessing both pathways in L2, making it possible to determine the degree of mastery of the different speech components (prosody, phonology, semantics and syntax) that are intrinsically embedded within connected speech and that vary according to the degree of proficiency using high degrees of prosodic information. Two groups of high and moderate proficiency in L2 performed an fMRI comprehension task in L1 and L2. The modifications in brain activity observed within the dorsal and the ventral pathways according to L2 proficiency suggest that different processes of L2 are supported by differences in the integrated activity within distributed networks that included the left STSp, the left Spt and the left pars triangularis.

Abstract Image

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熟练程度对第二语言理解的神经加工的调节:一项听力连接语音的功能磁共振研究。
虽然包括母语(L1)处理的神经网络已经被很好地定义,并且已经揭示了双侧腹侧通路和左背侧通路的存在,其中已经定义了3个环路,但第二语言(L2)处理的问题仍然是一个有争议的问题。在解释结果差异的变量中,第二语言熟练程度似乎是主要因素之一。本研究旨在评估第二语言的这两种途径,从而确定对不同语音成分(韵律、音韵、语义和句法)的掌握程度,这些成分内在地嵌入在连接的语音中,并根据使用高度韵律信息的熟练程度而变化。第二语言熟练程度高和中等的两组分别对第一语言和第二语言进行功能磁共振成像理解任务。在背侧和腹侧通路中观察到的大脑活动的变化,根据L2熟练程度,表明L2的不同过程是由包括左STSp、左Spt和左三角部在内的分布式网络中综合活动的差异所支持的。
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来源期刊
Open Neuroimaging Journal
Open Neuroimaging Journal Medicine-Radiology, Nuclear Medicine and Imaging
CiteScore
0.70
自引率
0.00%
发文量
3
期刊介绍: The Open Neuroimaging Journal is an Open Access online journal, which publishes research articles, reviews/mini-reviews, and letters in all important areas of brain function, structure and organization including neuroimaging, neuroradiology, analysis methods, functional MRI acquisition and physics, brain mapping, macroscopic level of brain organization, computational modeling and analysis, structure-function and brain-behavior relationships, anatomy and physiology, psychiatric diseases and disorders of the nervous system, use of imaging to the understanding of brain pathology and brain abnormalities, cognition and aging, social neuroscience, sensorimotor processing, communication and learning.
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