侧边年龄:多语言主义及其在塑造认知衰退和神经动态中的作用
Kirill Elin1, Federico Gallo2, Anders Gabrielsen2
1Center for Language Brain and Learning (C-LaBL), UiT - Arctic University of Norway Tromsø, Norway; Department of Psychology, Lund University, Sweden.
NeuroImage
|June 16, 2025
概括
更高的多语言参与度支持老年人的认知控制,显示较少的与年龄相关的大脑活动下降. 这表明多语言可能通过神经认知适应促进更健康的认知衰老.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 语言学的语言学.
背景情况:
- 认知控制能力可以随着年龄的增长而下降.
- 多语言参与是一种可能影响认知衰老的生活方式因素.
- 大脑振荡活动 (甲和甲功率) 与认知过程有关.
研究的目的:
- 研究多语言参与如何调节大脑振荡活动和整个生命周期的认知控制.
- 评估多语言能否缓和与年龄相关的大脑活动的变化.
- 检查这些变化对认知控制表现的影响.
主要方法:
- 脑电图 (EEG) 用于休息状态和基于任务的评估.
- 一个Flanker任务测量了认知控制和干扰抑制.
- 分析的重点是theta和alpha功率,以及对等效应 (CE).
主要成果:
- 较高的多语言参与与较弱的与年龄相关的静止状态和α功率的下降相关.
- 具有较高多语言参与度的老年人显示出较小的Flanker CE和较少的α抑制,表明有效的干扰抑制.
- 较低的老年人多语言参与与更大的CE和更大的α抑制有关,这表明神经招募效率较低.
结论:
- 多语言参与对整个生命周期的认知控制和神经活动产生积极影响.
- 它可能有助于维持认知控制机制,并促进更健康的认知衰老.
- 休息状态和基于任务的大脑活动之间的关系是复杂的,需要进一步研究.
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