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研究发现双语切换过程中普遍存在语码切换代价。该研究在图片命名范式下探讨了不同熟练程度的汉-英双语者在汉、英两种语言的语码切换代价及其差异。结果发现:不同熟练程度的汉-英双语者在双语切换过程中均存在语码切换代价;不熟练双语者的语码切换代价表现出不对称性,而熟练双语者的语码切换代价没有出现不对称性。研究显示第二语言的熟练程度是影响语码切换代价不对称性的重要因素。研究结果支持了特定语言提取阈限假说。
It is found that there is a common code switching cost in bilingual handover. The research explores the cost and difference of code switching between Chinese and English bilinguals with different proficiency in Chinese and English under the naming paradigm of images. The results show that: Chinese-English bilinguals with different proficiency have the cost of code switching in the process of bilingual switching; the cost of code switching of unskilled bilinguals shows asymmetry, while that of skilled bilinguals does not appear Asymmetry. Research shows that proficiency in a second language is an important factor that affects the asymmetry of code-switching costs. The results support the language-specific threshold hypothesis.