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相关概念视频

Long-term Potentiation01:25

Long-term Potentiation

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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
LTP can occur when...
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Role of Neurotransmitters in Memory01:23

Role of Neurotransmitters in Memory

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Neurotransmitters are integral to the brain's communication system, enabling neurons to transmit signals across synapses. This chemical exchange underpins various cognitive functions, including memory processes. The role of neurotransmitters in memory is multifaceted, influencing the encoding, consolidation, and retrieval of memories through their action on different neural circuits.
 Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is...
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Integration of Synaptic Events01:28

Integration of Synaptic Events

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Synaptic integration mainly includes the summation of graded potentials. Graded potentials, regardless of their type, cause subtle alterations in membrane voltage, resulting in either depolarization or hyperpolarization. These incremental changes, when combined or summed, can propel the neuron toward its threshold. Consider, for example, a membrane experiencing a +15 mV shift, causing it to depolarize from -70 mV to -55 mV. In this scenario, graded potentials govern the membrane's ability to...
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Neural Circuits01:25

Neural Circuits

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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...
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The Role of Ion Channels in Neuronal Computation01:19

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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....
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Postsynaptic Potential (PSP)01:32

Postsynaptic Potential (PSP)

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Postsynaptic potential (PSP) refers to a change in the electrical potential of a neuron when neurotransmitters released by presynaptic neurons bind to postsynaptic receptors. This potential can either be excitatory, leading to depolarization and ultimately action potential generation, or inhibitory, leading to hyperpolarization and suppression of the postsynaptic neuron.
There are two types of receptors: ionotropic and metabotropic.
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相关实验视频

Updated: Jul 24, 2025

Aversive Associative Learning and Memory Formation by Pairing Two Chemicals in Caenorhabditis elegans
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在体内,传感合使得记忆网络形成.

Dimitris A Pinotsis1,2, Earl K Miller2

  • 1Department of Psychology, Centre for Mathematical Neuroscience and Psychology, University of London, London EC1V 0HB, United Kingdom.

Cerebral cortex (New York, N.Y. : 1991)
|July 7, 2023
PubMed
概括
此摘要是机器生成的。

生物电场可能会在大脑区域组织记忆图像综合体. 这项研究提供了 in vivo 触觉合影响记忆表现的证据.

关键词:
自动编码器的自动编码器有效的连接,有效的连接.记忆内图 (Memory Engrams) 是一种记忆内图.神经元组合的神经元组合.预测编码的预测编码.协同作用 协同作用 协同作用 协同作用工作记忆 工作记忆

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Investigation of Synaptic Tagging/Capture and Cross-capture using Acute Hippocampal Slices from Rodents
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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.

背景情况:

  • 记忆存储在分布式的大脑区域,形成对记忆至关重要的engram复合体.
  • 协调这些分布式engrams的精确机制仍然不完全理解.

研究的目的:

  • 研究生物电场在组织engram复合体中的作用.
  • 测试生物电场引导神经活动并将参与的大脑区域联系起来的假设.

主要方法:

  • 利用协同学和机器学习的理论.
  • 在实体中分析了空间延迟萨卡德任务的数据.
  • 检查了记忆表现中的触觉合的证据.

主要成果:

  • 提供了证据支持生物电场对神经活动的影响.
  • 展示了协调分布式内存引擎的潜在机制.
  • 在体内确定了触觉合作为记忆表现的一个因素.

结论:

  • 生物电场可以作为神经活动的管弦乐队在engram复合体内.
  • 触觉合为分布式记忆痕迹的集成提供了一个新的生物物理解释.