电生理学证据表明,在语言理解过程中,事件知识的使用与年龄相关的变化
Rachel Myers1, Melissa Troyer2, Kara D Federmeier1
1Department of Psychology, University of Illinois Urbana-Champaign.
Psychology and aging
|December 4, 2025
概括
与年轻人相比,老年人在语言理解过程中如何使用事件知识方面存在差异. 对事件知识的即时访问似乎受到正常衰老的影响.
科学领域:
- 认知神经科学 认知神经科学
- 心理语言学 心理语言学
- 发展心理学 发展心理学
背景情况:
- 一般事件知识有助于语言理解和单词理解.
- 正常的衰老涉及世界知识的增加,但流体能力的减少,可能会影响诸如事件知识使用等认知过程.
研究的目的:
- 研究正常衰老如何影响语言理解过程中事件知识的使用.
- 为了比较与事件相关的大脑潜力 (N400和晚期阳性复合体) 在年轻人和老年人处理可预测和异常单词在现实世界的场景.
主要方法:
- 测量了与事件相关的大脑潜力 (ERP),特别是N400和晚期阳性复合体.
- 参与者 (年轻人:18-30;老年人:53-80) 阅读了以可预测或异常单词 (与事件相关或无关) 结束的场景.
主要成果:
- 较年轻的成年人显示,与无关异常相比,可预测和与事件相关的异常词的N400s减少.
- 老年人对可预测的单词显示N400的减少,但与无关的异常相比,与事件相关的异常单词没有减少.
- 年长的成年人稍后区分异常词类型 (晚期积极复合),表明最终,更明确的事件关系的处理.
结论:
- 在语言理解过程中,事件知识的即时可用性受到正常衰老的影响.
- 年轻的成年人广泛地激活事件信息,而年长的成年人表现出不那么直接的激活,但后来明确地欣赏事件关系.
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