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相关概念视频

Long-term Depression01:03

Long-term Depression

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Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
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Long-term Potentiation01:25

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Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Hebbian LTP
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相关实验视频

Updated: Jun 6, 2025

Disruption of Frontal Lobe Neural Synchrony During Cognitive Control by Alcohol Intoxication
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关闭模块化驱动改变了前额叶皮层动态和连接性的驱动.

Ryan Zahacy1, Yonglie Ma2, Ian R Winship1,2

  • 1Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada.

Communications biology
|November 23, 2024
PubMed
概括
此摘要是机器生成的。

关闭层 (大脑区域) 影响皮质活动和大规模的大脑网络. 调节关节活动会改变前额叶皮质功能和感官反应,突出其在神经通信中的作用.

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Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms
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Continuous Theta Burst Stimulation of the Posterior Medial Frontal Cortex to Experimentally Reduce Ideological Threat Responses
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Last Updated: Jun 6, 2025

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Continuous Theta Burst Stimulation of the Posterior Medial Frontal Cortex to Experimentally Reduce Ideological Threat Responses
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科学领域:

  • 神经科学是一个神经科学.
  • 计算神经科学是一种神经科学.
  • 系统神经科学 系统神经科学

背景情况:

  • 关闭层是一个鲜为人知的下皮层结构.
  • 它在调节皮层活动和大规模大脑网络方面的确切作用尚不清楚.

研究的目的:

  • 研究关闭层对自发和感官唤起的皮质网络活动的影响.
  • 确定关闭层调制如何影响前额叶皮质活动和远程功能连接.

主要方法:

  • 在麻醉小鼠中进行中尺度成像.
  • 使用Gi和GqDREADDs进行化学遗传操纵,以改变闭塞活动.

主要成果:

  • 关节活动的减少增强了前额叶皮质活动;激活减少了它.
  • 闭层调制改变了大规模的功能性大脑网络和远程皮质连接.
  • 闭层抑制增加了局部额叶皮层的合,但减少了长距离的相关性,同时增强了视觉皮层的感官反应.

结论:

  • 关闭层在协调皮层区域内的神经通信方面发挥着重要作用.
  • 幽室活动调节前额叶皮层功能,大规模网络动态和感官处理.
  • 闭膜是调节大规模皮层动态的一个关键节点.