发展性语言障碍或没有发展性语言障碍的学前儿童的统计学习:检查语言状态,年龄和先前学习的影响.
Leah L Kapa1, Heidi M Mettler1
1Department of Speech, Language, and Hearing Sciences, The University of Arizona, Tucson.
Journal of speech, language, and hearing research : JSLHR
|August 7, 2024
概括
与典型同龄人相比,患有发育性语言障碍 (DLD) 的学前儿童表现出统计学学习缺陷,在5岁儿童中差异更明显,语法更复杂. 早期的统计学学习对语言发展至关重要.
科学领域:
- 认知科学 认知科学
- 发展心理学 发展心理学
- 语言学的语言学.
背景情况:
- 统计学学习是语言学习的关键机制.
- 发育性语言障碍 (DLD) 影响儿童的语言发展.
- 了解DLD中的统计学习对于有针对性的干预至关重要.
研究的目的:
- 为了比较带有和没有DLD的学龄前儿童的统计学学习能力.
- 评估语法复杂性对DLD儿童统计学学习的影响.
- 调查DLD和典型发展 (TD) 群体之间的统计学习中的年龄相关差异.
主要方法:
- 4岁和5岁的有和没有DLD的孩子学习了两个人工语法 (aX和abX).
- 参与者将学习的模式概括为新的序列,测试语法规则的遵守.
- 基于识别语法和非语法序列的准确性来评估表现.
主要成果:
- 患有DLD和没有DLD的四岁儿童在两种语法试验中表现相似,得分接近偶然.
- 与TD同龄人相比,患有DLD的五岁儿童在更简单的aX语法上表现出明显较低的准确性.
- 5岁的TD儿童在所有语法测试中都超过了机会,而5岁的DLD儿童则没有,这表明了年龄和语法复杂性的影响.
结论:
- 患有DLD的学龄前儿童与TD同龄人相比,呈现出统计学学习缺陷.
- 这些缺陷受到孩子的年龄和语法结构复杂性的影响.
- 调查结果强调了统计学学习对语言发展的重要性,并建议在DLD中进行干预的潜在目标.
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