人类大脑中多个决策选择的节奏抽样
Marcus Siems1, Yinan Cao2, Maryam Tohidi-Moghaddam2
1Department of Neurophysiology and Pathophysiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany. m.siems@uke.de.
Nature communications
|February 11, 2026
概括
决策涉及注意力动态. 这项研究揭示了隐藏注意力强度的节奏波动,有助于在选择过程中采样和处理信息.
科学领域:
- 认知神经科学 认知神经科学
- 决策过程中的神经科学
- 注意力研究研究研究
背景情况:
- 决策依赖于顺序抽样信息.
- 在决策过程中选择性注意的内部动态尚不清楚.
研究的目的:
- 调查在感知选择任务期间隐藏注意力的自发动态.
- 了解注意力的位置和强度如何随着时间的推移而变化.
主要方法:
- 在人类参与者中使用磁脑电图 (MEG) 记录.
- 采用神经解码技术来追踪注意力动态.
- 分析了来自三个替代感知选择任务的数据.
主要成果:
- 隐藏的注意力强度表现出11 Hz左右的节奏波动.
- 替代品之间的注意力转移发生在这些振荡的低谷,促进了比较.
- 峰值注意力处理发生在振荡的高峰期,深入关注当前的替代方案.
结论:
- 内在的注意力振荡被提出为在决策过程中灵活采样信息的基本机制.
- 这些振荡调节了动态的分配和处理的注意力跨替代品.
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