相关实验视频

Updated: Jun 26, 2026

Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms
08:36

Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms

Published on: March 21, 2019

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通过通信理论研究时间解决的功能连接:关于相位同步和滑窗的互补性质的皮尔森相关性

Sir-Lord Wiafe1, Nana O Asante2,3, Vince D Calhoun1

  • 1Tri-Institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS), Georgia State University, Georgia Institute of Technology, and Emory University, Atlanta, GA 30303, USA.

bioRxiv : the preprint server for biology
|June 25, 2024
PubMed
概括

这项研究比较了滑窗皮尔森相关性 (SWPC) 和相同步 (PS) 分析大脑连接与fMRI数据. 这两种方法都揭示了与精神分裂症相关的网络变化,突出了它们在神经科学研究中的互补作用.

关键词:
扩展幅度解调的解调.动态功能连接的功能连接.模块化阶段的拆解.阶段同步 阶段同步滑窗 皮尔森相关性 皮尔森相关性时间解决的功能网络连接性.

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Author Spotlight: Unlocking New Insights in fNIRS Studies - A Novel Framework for Inter-Brain Synchrony Analysis05:59

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Time and frequency -Domain Interpretation of Phase-lead Control

Phase-lead controllers are commonly used in various control systems to enhance response speed and stability. Adjusting the brightness on a television screen offers a practical example of phase-lead control. When contrast is enhanced, a phase-lead controller is employed. Mathematically, phase-lead control is identified when the first parameter is smaller than the second.
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
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Phase-lag controllers are widely used in control systems to improve stability and reduce steady-state errors. A dimmer switch controlling the brightness of a light bulb serves as a practical example of phase-lag control, gradually adjusting the bulb's brightness. Mathematically, phase-lag control or low-pass filtering is represented when the factor 'a' is less than 1.
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Neuronal Communication

Neurons, the fundamental units of the brain and nervous system, communicate through complex electrochemical signals that underpin all cognitive and bodily functions. This communication is primarily facilitated by a process involving the generation and propagation of an action potential along the axon of the neuron. When the internal electrical charge of a neuron surpasses a certain threshold, an action potential is triggered. This rapid change in voltage travels swiftly along the axon to the...