Modeling effects of linguistic complexity on L2 processing effort: The case of eye movement in text reading

IF 4.2 1区 文学 Q1 LINGUISTICS Studies in Second Language Acquisition Pub Date : 2023-09-18 DOI:10.1017/s0272263123000438
Xiaopeng Zhang, Nan Gong
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Abstract

This study examined how linguistic complexity features contribute to second language (L2) processing effort by analyzing the Dutch English-L2 learners’ eye movements from GECO and MECO, two eye-tracking corpora. Processing effort was operationalized as reading rate, mean fixation duration, regression rate, skipping rate, and mean saccade amplitude. In Study 1, the lexical, syntactic, and discoursal indices in 272 snippets of a novel in GECO were regressed against these eye-movement measures. The results showed that the one-component partial least square regression (PLS-R) models could explain 11%–37% of the variance in these eye-movement measures and outperformed eight readability formulas (six traditional and two recent cognitively inspired formulas based on the readers’ perception on text difficulty) in predicting L2 processing effort. In Study 2, the eye-tracking data from MECO were used to evaluate whether the findings from Study 1 could be applied more broadly. The results revealed that although the predictability of these PLS-R components decreased, they still performed better than the readability formulas. These findings suggest that the linguistic indices identified can be used to predict L2 text processing effort and provide useful implications for developing systems to assess text difficulty for L2 learners.
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语言复杂性对二语处理努力的建模效应——以文本阅读中的眼动为例
本研究通过分析GECO和MECO这两个眼动语料库中荷兰英语L2学习者的眼动,考察了语言复杂性特征对第二语言加工的贡献。处理努力被操作为阅读率、平均注视持续时间、回归率、跳跃率和平均扫视幅度。在研究1中,GECO中272个小说片段的词汇、句法和话语指数与这些眼动指标进行了回归。结果表明,单成分偏最小二乘回归(PLS-R)模型可以解释这些眼动测量中11%-37%的方差,并且在预测二语处理努力方面优于八个可读性公式(六个传统公式和两个最近基于读者对文本难度的感知的认知启发公式)。在研究2中,MECO的眼动追踪数据用于评估研究1的发现是否可以更广泛地应用。结果表明,尽管这些PLS-R分量的可预测性降低,但它们仍然比可读性公式表现得更好。这些发现表明,所确定的语言指标可以用来预测二语文本处理的努力,并为开发评估二语学习者文本难度的系统提供有用的启示。
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来源期刊
CiteScore
8.00
自引率
9.80%
发文量
52
期刊介绍: Studies in Second Language Acquisition is a refereed journal of international scope devoted to the scientific discussion of acquisition or use of non-native and heritage languages. Each volume (five issues) contains research articles of either a quantitative, qualitative, or mixed-methods nature in addition to essays on current theoretical matters. Other rubrics include shorter articles such as Replication Studies, Critical Commentaries, and Research Reports.
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