An fMRI validation study of the word-monitoring task as a measure of implicit knowledge: Exploring the role of explicit and implicit aptitudes in behavioral and neural processing

An fMRI validation study of the word-monitoring task as a measure of implicit knowledge: Exploring the role of explicit and implicit aptitudes in behavioral and neural processing
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作为隐性知识衡量标准的单词监控任务的功能磁共振成像验证研究:探索显性和隐性能力在行为和神经处理中的作用

DOI:
10.1017/s0272263122000043
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发表时间:
2022
影响因子:
4.1
通讯作者:
Sugiura Motoaki
Sugiura Motoaki
中科院分区:
人文科学1区
文献类型:
--
作者:
Suzuki Yuichi;Jeong Hyeonjeong;Cui Haining;Okamoto Kiyo;Kawashima Ryuta;Sugiura Motoaki

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本研究探讨了成年人第二语言使用者内隐语法知识的神经表征。居住在日本的高级L2日语发言者,以及L1日语发言者,在MRI扫描仪中执行单词监测任务(建议作为内隐知识测试)。行为措施,获得了显式(语言分析能力)和隐式(统计学习能力)学习的能力倾向测试。研究结果表明,虽然L1和L2扬声器招募与程序记忆相关的神经回路在单词监测任务,不同的大脑区域被激活:前运动皮层(L1扬声器)和左尾状核(L2扬声器)。前运动皮层激活弱于L2比L1扬声器,但与左尾状核激活呈正相关,这表明他们的语法知识,而较少自动化,仍在发展。对错误的行为敏感性仅由外显语言能力倾向预测,这可能在语法知识的自动化中起关键作用。
In this study, neural representation of adult second language (L2) speakers’ implicit grammatical knowledge was investigated. Advanced L2 speakers of Japanese living in Japan, as well as L1 Japanese speakers, performed a word-monitoring task (proposed as an implicit knowledge test) in the MRI scanner. Behavioral measures were obtained from aptitude tests for explicit (language analytic ability) and implicit (statistical learning ability) learning. Findings indicate that, although both L1 and L2 speakers recruited neural circuits associated with procedural memory during the word-monitoring task, different brain regions were activated: premotor cortex (L1 speakers) and left caudate (L2 speakers). The premotor cortex activation was weaker in L2 than L1 speakers but was positively correlated with the left caudate activation, suggesting that their grammatical knowledge, while less automatized, was still developing. Behavioral sensitivity to errors was predicted only by explicit language aptitude, which may play a key role in the automatization of grammatical knowledge.
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