对类型效应的基于任务的解释:来自依赖树的证据
1Department of Linguistics, Zhejiang University, Hangzhou, Zhejiang, China.
PloS one
|August 23, 2023
概括
第二语言 (L2) 写作中的类型效应是由认知负载驱动的,而不仅仅是任务需求. 依赖距离测量揭示了认知因素如何影响不同L2写作类型和熟练程度水平的语言特征.
科学领域:
- 获得第二语言的学习.
- 认知语言学 认知语言学
- 应用语言学 应用语言学
背景情况:
- 第二语言 (L2) 写作的类型效应通常归因于任务的复杂性或沟通需求.
- 认知因素在这些类型效应中的作用仍然不清楚.
- 现有的研究缺乏关于L2写作类型变异背后的认知机制的经验证据.
研究的目的:
- 通过检查类型效应,研究认知因素在L2写作中的作用.
- 在L2写作中提供认知负载假设的经验证据.
- 分析不同类型 (论证,叙事,描述) 如何影响L2作家的认知过程.
主要方法:
- 利用依赖语法为基础的测量来分析来自三个能力组的540个L2组合.
- 计算的平均依赖距离及其跨类型的分布.
- 检查了五种类型的依赖关系,以评估认知负载和特定类型的模式.
主要成果:
- 在所有熟练程度的各个类型中,在依赖距离分布中发现了显著的差异.
- 依赖距离变化表明认知因素参与L2写作.
- 语句依赖关系显示了不论熟练程度的一致的类型效应,而语句关系则表明了与熟练程度相关的认知值.
结论:
- 类型对L2写作的影响受到不同写作任务固有的认知需求的显著影响.
- 认知负载,如依赖距离所反映,在形成跨类型的语言特征方面发挥着至关重要的作用.
- 类型对L2写作的影响可能因学习者的语言能力水平而异.
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