在参考处理过程中记忆编码和检索的年龄相关差异:时间频率分析
Hossein Karimi1, Megan A Boudewyn2, David Vandenheever3
1Mississippi State University, Department of Psychology.
Psychology and aging
|November 4, 2024
概括
老年人在句子处理时使用"足够好"的记忆策略,特别是当回忆信息具有挑战性时. 这与年轻人不同,年轻人表现出更高的认知成本.
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
- 衰老研究研究 衰老研究
背景情况:
- 了解记忆检索如何受到语言因素的影响,如单词相似性和代词模两可,至关重要.
- 研究与年龄相关的认知处理差异,特别是句子理解,是研究的一个活跃领域.
研究的目的:
- 检查词汇形式相似性和代词模糊性如何影响年轻人和老年人的记忆编码和检索.
- 探索基于年龄的特定神经机制,这些神经机制是句子处理和引用模两可的基础.
主要方法:
- 脑电图 (EEG) 用于分析时间锁定于名词短语 (NP) 和代词的大脑活动.
- 参与者处理的句子具有不同的NP相似性 (例如,杰森和雅各布与杰森和马特) 和代词模两可.
- 分析了α和theta功率的变化,以推断诸如抑制和记忆维护/检索等认知过程.
主要成果:
- 年长的成年人在NP编码与同性NP时显示出增加的α功率,这表明更大的抑制需求.
- 两个年龄组都显示了相似的NP的α功率增加,但只有年轻的成年人出现了太功率增加,这表明了额外的维护成本.
- 年轻的成年人对模两可的代名词和类似的NP表现出更大的theta功率,这表明检索更费力,而年长的成年人表现出更少的功率,表明有效的"足够好"处理.
结论:
- 老年人使用"足够好的"参考处理策略,当记忆检索在认知上要求时.
- 词汇相似性和代名词含糊性对不同年龄组的认知负载和处理策略产生不同的影响.
- 认知控制和处理效率的年龄相关差异影响个人如何在句子理解过程中解决语言模两可.
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