发展性语言障碍儿童与工作记忆相关的认知过程.
Caroline Larson1, Janine Mathée-Scott1, David Kaplan2
1Department of Communication Sciences and Disorders, University of Wisconsin-Madison, Madison, WI 53706, USA; Waisman Center, University of Wisconsin-Madison, Madison, WI 53705, USA.
患有发育性语言障碍 (DLD) 的儿童在工作记忆任务中表现出更广泛的认知参与,与典型的发育同龄人相比. 这表明DLD中语言的基础是不那么专业的认知过程.
科学领域:
- 认知心理学 认知心理学
- 发育神经科学的发展神经科学.
- 语言学的语言学.
背景情况:
- 工作记忆对于认知功能至关重要.
- 发育性语言障碍 (DLD) 影响语言学习.
- 认知能力的个体差异会影响工作记忆.
研究的目的:
- 研究DLD儿童和典型发育 (TD) 同龄人的语言,非语言和注意力能力和工作记忆之间的关系.
- 利用基于干扰的工作记忆模型来理解这些关系.
- 为了比较DLD与TD儿童工作记忆的基础认知过程.
主要方法:
- 采用了一种实验范式,其中包括口头和非口头回忆项目以及干扰任务.
- 采用贝叶斯的leave-one-out交叉验证来比较工作记忆的预测模型.
- 统计测试选择的模型以确定重要的预测因素.
主要成果:
- 工作记忆模型在DLD和TD组之间存在差异,特别是在口头工作记忆方面.
- 语言,非语言和注意力技能预测了DLD组在口头和非语言任务中的工作记忆表现.
- 只有注意力技能预测了TD组的口头工作记忆.
结论:
- 患有DLD的儿童在工作记忆任务中表现出比DD同龄人更广泛的认知参与.
- 这可能表明在DLD中支持语言的认知过程的专业化减少.
- 基于干扰的模型有效地解释了语言,处理速度和语言处理中的干扰抑制之间的相互关系.
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