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相关概念视频

Working Memory01:24

Working Memory

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Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this...
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相关实验视频

Updated: Jan 18, 2026

Online Repetitive Transcranial Magnetic Stimulation of Dorsomedial and Dorsolateral Prefrontal Cortex in Cognition Decision Making, and Cognitive Dissonance
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工作记忆的稳定性到前额叶皮层微刺激

Joana Soldado-Magraner1,2,3, Yuki Minai2,3,4, Byron M Yu5,2,3,6

  • 1Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 jsoldadomagraner@cmu.edu.

The Journal of neuroscience : the official journal of the Society for Neuroscience
|May 30, 2025
PubMed
概括
此摘要是机器生成的。

脊侧前额皮层 (dlPFC) 中的神经活动支持工作记忆. 微刺激扰乱了dlPFC信号,但没有影响任务性能,显示工作记忆的强度.

关键词:
减少维度,减少维度.背侧侧前额皮质 前额皮质神经干扰是一种神经干扰.人口活动人口活动.

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科学领域:

  • 神经科学是一个神经科学.
  • 认知神经科学 认知神经科学
  • 系统神经科学 系统神经科学

背景情况:

  • 脊侧前额皮层 (dlPFC) 中的延迟期活动对于在工作记忆中保持感官信息至关重要.
  • 据认为,dlPFC中的信号稳定性能够实现强大的记忆引导行为,尽管有感官分心.

研究的目的:

  • 研究直接活动干扰对dlPFC神经信号和工作记忆行为的影响.
  • 了解 dlPFC 神经群活动动态如何与工作记忆稳定性有关.

主要方法:

  • 在一个记忆指导的萨卡德任务中,对两只 rhesus 的 dlPFC 进行了模拟微刺激.
  • 多电极阵列被用来记录神经活动并提供电刺激.
  • 在各种刺激条件下测量神经活动和任务性能.

主要成果:

  • 微刺激扰乱了单个dlPFC神经元中的与工作记忆相关的空间信号.
  • 尽管神经信号受到干扰,但整体任务性能基本上没有受到影响.
  • 在信号随时间演变的维度中观察到神经活动的变化,但不是在稳定的维度中.

结论:

  • 在dlPFC中的工作记忆表示对干扰具有强大耐受性.
  • 在dlPFC群体活动的特定维度中神经信号的稳定性可能是这种强度的基础.
  • 这种分离解释了工作记忆如何保持,尽管神经活动的波动.