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思想神经动力学的时间签名区分在任务上和任务之外的想法

Zhengkun Long^1,2,3,4,5, Xiaolan Fu⁶, Qi Chen^7,8,9

¹School of Psychology, Shenzhen University, Shenzhen, China.

Communications biology

|February 15, 2026

概括

我们的大脑动态揭示了在任务上和任务之外的思想的独特签名. 像自相关窗口 (ACW) 和Lempel-Ziv复杂性 (LZC) 这样的神经动力学特征在时间连续上区分了思想类型.

科学领域:

认知神经科学认知神经科学
神经动力学是一种神经动力学.
电子生理学电子生理学

背景情况:

人类思想在以任务为中心和与任务无关的状态之间动态转移.
虽然存在思想类型的神经标记,但它们的时间动态不清楚.
了解思想动态对于认知功能至关重要.

研究的目的:

调查神经动力学特征,区分在任务上和任务之外的想法.
使用EEG探索思想动态的时间特征.
识别与思想内容相关的大脑活动中的等级结构.

主要方法:

在信号响应任务中使用脑电图 (EEG).
分析的神经动力学特征:自相关窗口 (ACW),Lempel-Ziv复杂性 (LZC),功率定律指数 (PLE) 和中位频率 (MF).
采用统计建模来检查跨时间尺度 (区块级和试验级) 的等级背景前景结构.

主要成果:

与任务思想相比,非任务思想显示出延长的ACW,减少的LZC,增加的PLE和较小的MF.
确定了一个层次结构,从较长的 (17s) 过渡到较短的 (3s) 时间表.
大脑动态表现出明显的合模式:在任务中的想法紧密结合,在任务之外的想法松散相关.

结论:

神经动力学特征为任务和任务之外的想法提供了独特的签名.
大脑的动态是沿着时间连续的层次组织,影响思想内容.
这些发现提供了关于思想漫游和集中注意力的神经基础的见解.

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