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在工作记忆维护期间,神经活动的目标定向调制

Xuqian Li¹, Michael J O'Sullivan^2,3, Jason B Mattingley^4,5

¹Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Corner College Road and Cooper Road, St Lucia, QLD 4067, Australia.

Cerebral cortex (New York, N.Y. : 1991)

|November 5, 2025

概括

目标积极塑造视觉工作记忆的维护,而不仅仅是初始编码. 在维护过程中,大脑活动显示出不同的模式,改善成功试验的回忆精度.

科学领域:

认知神经科学认知神经科学
神经科学是一个神经科学.

背景情况:

视觉工作记忆 (VWM) 对以目标为导向的行动至关重要.
以前的模型经常忽略了目标如何影响VWM维护后编码.

研究的目的:

调查VWM维护的目标调制.
确定目标导向控制是否超出了刺激编码.
检查VWM中目标调制的时间动态.

主要方法:

80名成年人进行了视觉延迟估计任务.
脑电图 (EEG) 在编码和维护过程中记录了大脑活动.
使用了与事件相关的潜力和多变量模式分析.

主要成果:

定位任务显示出比定位任务更大的反边权延迟活动.
在维护过程中,特定任务的大脑模式是可解码的,而不是编码.
目标定向调制涉及两个不同的,动态的过程.
在维护期间成功与不成功的试验中,解码精度更高.

结论:

目标定向调制积极塑造VWM维护,而不仅仅是编码.
独特的神经过程是目标导向的VWM随时间的控制的基础.
成功维护VWM与任务目标的更清晰的神经表示有关.

关键词:

在CDA中,CDA是最重要的.MVPA MVPA是什么意思在 N2pcc 中以目标为导向的控制.视觉工作记忆视觉工作记忆

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