在旋律编码过程中,听觉选择性注意力和工作记忆之间的相互作用的大脑动态
Aurélien de la Chapelle1, Salomé Serres-Blain1, Alma ElShafei1,2
1Université Claude Bernard Lyon 1, INSERM, CNRS, Centre de Recherche en Neurosciences de Lyon CRNL U1028 UMR5292, F-69500, Bron, France.
Scientific reports
|July 2, 2025
概括
工作记忆和注意力相互作用,影响认知表现和大脑活动. 在任何任务中增加的难度都会损害准确性并改变神经反应,这表明共享认知资源.
科学领域:
- 认知神经科学 认知神经科学
- 神经成像是一种神经成像.
- 听觉感知是一种听觉感知.
背景情况:
- 工作记忆和选择性注意力对于日常任务至关重要,但经常被孤立地研究.
- 了解它们的相互作用是理解复杂认知功能的关键.
研究的目的:
- 研究听觉工作记忆和选择性注意力之间的相互作用.
- 探索如何操纵记忆和注意力困难影响认知表现和神经活动.
主要方法:
- 使用了MEMORY和注意力 (MEMAT) 范式与磁脑摄影 (MEG).
- 记录了22名参与者执行听觉延迟匹配样本任务的脑活动,记忆和注意力困难各不相同.
- 分析了行为准确性和神经信号,包括随机负变量 (CNV),α功率,持续唤起的反应和正面的乙太功率.
主要成果:
- 增加的记忆任务难度导致精度降低,CNV幅度增加,并在前时间网络中减少α功率下降.
- 增加的注意力过困难降低了准确性,增加了持续唤起的响应幅度,减少了听觉区域的差异化,增加了正面的西塔功率.
- 观察到左侧听觉皮层的直接相互作用:记忆困难减少了相关声音处理的注意力促进,反映了行为发现.
结论:
- 工作记忆和选择性注意力表现出相互影响,支持共享认知资源的概念.
- 神经动力学揭示了这两个认知系统如何相互作用来管理听觉信息处理.
- 研究结果提供了关于复杂任务中综合认知控制的神经基础的见解.
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