Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Neural Circuits01:25

Neural Circuits

1.3K
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
1.3K
The Role of Ion Channels in Neuronal Computation01:19

The Role of Ion Channels in Neuronal Computation

3.2K
A postsynaptic neuron usually receives numerous impulses from several other presynaptic neurons. The axon hillock of the postsynaptic neuron integrates all these signals and determines the likelihood of firing an action potential.
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential....
3.2K
Neural Regulation01:37

Neural Regulation

39.5K
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
39.5K
Propagation of Action Potentials01:23

Propagation of Action Potentials

5.9K
The propagation of an action potential refers to the process by which a nerve impulse, or "action potential," travels along a neuron.
Neurons (nerve cells) have a resting membrane potential, with a slightly negative charge inside compared to outside. This is maintained by ion channels, such as sodium (Na+) and potassium (K+) channels, which control the flow of ions. When a stimulus, like a touch or a signal from another neuron, triggers the neuron, sodium channels open, allowing sodium ions to...
5.9K
Action Potential01:31

Action Potential

8.0K
Neurons communicate by firing action potentials—the electrochemical signal that is propagated along the axon. The signal results in the release of neurotransmitters at axon terminals, thereby transmitting information to the nervous system. An action potential is a specific "all-or-none" change in membrane potential that results in a rapid spike in voltage.
Membrane potential in neurons
Neurons typically have a resting membrane potential of about -70 millivolts (mV). When they...
8.0K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Systemic inflammation and mental health: A J-shaped dose-response pattern in depression based on NHANES 2005 to 2018.

Medicine·2026
Same author

CDK9 degrader induces BRCAness and sensitizes castration-resistant prostate cancer to PARP inhibitor.

Theranostics·2026
Same author

Recent advances in graphene-based field-effect transistor sensors for the detection of biomolecules and organic molecules.

Chemical communications (Cambridge, England)·2026
Same author

Correction to "Discovery of Dual BCL-xL/BCL-w Degraders by Exploiting the Bis(sulfonyl)benzene Ring of ABT-263 as a Linkage Vector".

Journal of medicinal chemistry·2026
Same author

Phenological Changes in the Fecal Microbiota of <i>Elaphurus davidianus</i> in Inner Mongolia Daqingshan National Nature Reserve.

Animals : an open access journal from MDPI·2026
Same author

Without Paired Labeled Data: End-to-End Self-Supervised Learning for Drone-View Geo-Localization.

IEEE transactions on neural networks and learning systems·2026

相关实验视频

Updated: Jul 16, 2025

A Simple Stimulatory Device for Evoking Point-like Tactile Stimuli: A Searchlight for LFP to Spike Transitions
07:34

A Simple Stimulatory Device for Evoking Point-like Tactile Stimuli: A Searchlight for LFP to Spike Transitions

Published on: March 25, 2014

9.9K

尖端注意力编码用于尖端神经网络.

Jiawen Liu, Yifan Hu, Guoqi Li

    IEEE transactions on neural networks and learning systems
    |September 11, 2023
    PubMed
    概括

    我们为尖端神经网络 (SNN) 引入了尖端注意力编码 (SAC),这是一种将速率和时间编码统一的新方法. 这种方法通过灵活学习最佳注意力系数来提高SNN在各种任务中的性能.

    科学领域:

    • 以神经科学为导向的智能模型
    • 神经形态计算是一种神经形态计算.

    背景情况:

    • 尖端神经网络 (SNN) 在神经形态计算中至关重要.
    • 当前的编码方案,如速率编码 (有限分辨率,长延迟) 和时间编码 (低利用尖峰) 都有局限性.

    研究的目的:

    • 为SNN提出一种新的编码方案,即尖峰注意力编码 (SAC),用于SNN.
    • 统一和增强现有的编码方法,以提高SNN的性能.

    主要方法:

    • 引入了SNN中每个时间步骤的可学习的注意力系数.
    • 整合了规范化和规范化技术来控制注意力系数.
    • 评估了对分类,生成和回归任务的方案.

    主要成果:

    • 证明了SAC对传统方法的优越性.
    • 在SNN中展示了增强的表示能力和性能.
    • 在各种机器学习任务中验证了有效性.

    结论:

    • SAC为SNN提供了一个灵活而强大的编码方案.
    • 拟议的方法增强了SNN的代表能力.

    更多相关视频

    Using Neuron Spiking Activity to Trigger Closed-Loop Stimuli in Neurophysiological Experiments
    05:19

    Using Neuron Spiking Activity to Trigger Closed-Loop Stimuli in Neurophysiological Experiments

    Published on: November 12, 2019

    7.1K
    Closed-loop Neuro-robotic Experiments to Test Computational Properties of Neuronal Networks
    11:18

    Closed-loop Neuro-robotic Experiments to Test Computational Properties of Neuronal Networks

    Published on: March 2, 2015

    10.3K

    相关实验视频

    Last Updated: Jul 16, 2025

    A Simple Stimulatory Device for Evoking Point-like Tactile Stimuli: A Searchlight for LFP to Spike Transitions
    07:34

    A Simple Stimulatory Device for Evoking Point-like Tactile Stimuli: A Searchlight for LFP to Spike Transitions

    Published on: March 25, 2014

    9.9K
    Using Neuron Spiking Activity to Trigger Closed-Loop Stimuli in Neurophysiological Experiments
    05:19

    Using Neuron Spiking Activity to Trigger Closed-Loop Stimuli in Neurophysiological Experiments

    Published on: November 12, 2019

    7.1K
    Closed-loop Neuro-robotic Experiments to Test Computational Properties of Neuronal Networks
    11:18

    Closed-loop Neuro-robotic Experiments to Test Computational Properties of Neuronal Networks

    Published on: March 2, 2015

    10.3K
  • 扩大了SNN的应用范围,超出了分类范围.