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Long-term Potentiation01:25

Long-term Potentiation

3.7K
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...
3.7K
Long-term Potentiation01:35

Long-term Potentiation

58.9K
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.
58.9K
Neuroplasticity01:01

Neuroplasticity

2.0K
Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
2.0K
Long-term Depression01:03

Long-term Depression

3.4K
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
If over...
3.4K
Long-term Depression01:05

Long-term Depression

33.4K
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.
33.4K
Integration of Synaptic Events01:28

Integration of Synaptic Events

4.5K
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...
4.5K

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Updated: Feb 22, 2026

3D Modeling of Dendritic Spines with Synaptic Plasticity
07:13

3D Modeling of Dendritic Spines with Synaptic Plasticity

Published on: May 18, 2020

7.4K

行動時間スケールのシナプス可塑性:特性,要素,機能

Jeffrey C Magee1,2

  • 1Howard Hughes Medical Institute, Baylor College of Medicine, Houston, TX, USA. jcmagee@bcm.edu.

Nature neuroscience
|February 20, 2026
PubMed
まとめ
この要約は機械生成です。

行動時間スケールのシナプス可塑性 (BTSP) は,迅速な学習と記憶形成を可能にする新しい脳メカニズムです. ヒポキャンプスのこの可塑性は,記憶の効率的な貯蔵と経験の一般化を可能にします.

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Evaluation of Synaptic Multiplicity Using Whole-cell Patch-clamp Electrophysiology
10:52

Evaluation of Synaptic Multiplicity Using Whole-cell Patch-clamp Electrophysiology

Published on: April 23, 2019

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Ex Vivo Optogenetic Interrogation of Long-Range Synaptic Transmission and Plasticity from Medial Prefrontal Cortex to Lateral Entorhinal Cortex
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Ex Vivo Optogenetic Interrogation of Long-Range Synaptic Transmission and Plasticity from Medial Prefrontal Cortex to Lateral Entorhinal Cortex

Published on: February 25, 2022

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関連する実験動画

Last Updated: Feb 22, 2026

3D Modeling of Dendritic Spines with Synaptic Plasticity
07:13

3D Modeling of Dendritic Spines with Synaptic Plasticity

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Evaluation of Synaptic Multiplicity Using Whole-cell Patch-clamp Electrophysiology
10:52

Evaluation of Synaptic Multiplicity Using Whole-cell Patch-clamp Electrophysiology

Published on: April 23, 2019

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Ex Vivo Optogenetic Interrogation of Long-Range Synaptic Transmission and Plasticity from Medial Prefrontal Cortex to Lateral Entorhinal Cortex
11:31

Ex Vivo Optogenetic Interrogation of Long-Range Synaptic Transmission and Plasticity from Medial Prefrontal Cortex to Lateral Entorhinal Cortex

Published on: February 25, 2022

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科学分野:

  • 神経科学は神経科学である.
  • コグニティブ・サイエンス コグニティブ・サイエンス

背景:

  • 脳の学習と記憶を理解することは,重要な科学的課題です.
  • 行動時間スケールのシナプス可塑性 (BTSP) は,経験に基づく学習と記憶に関与しています.
  • BTSPは強い双方向性のある可塑性であり,シナプス重量に影響を及ぼします.

研究 の 目的:

  • 学習と記憶におけるBTSPの役割を調査する.
  • BTSPの基礎となるメカニズムを明らかにする. プレートポテンシャルイニシアチブを含む.
  • BTSPのメモリストレージ,リクエスト,および汎用化の可能性を調査する.

主な方法:

  • BTSPが海馬の機能に関与する研究.
  • 単一のデンドリットイベントによるプレートポテンシャル誘導の分析.
  • 局所的なフィードバック阻害およびより高いレベルの脳入力を含む制御メカニズムの研究.

主要な成果:

  • BTSPは,伝統的な可塑性メカニズムとは異なり,単一のデンドリット高原ポテンシャルによって誘発されます.
  • プレートポテンシャル開始には,局所的なフィードバックの抑制と,上位階の指導的な入力が含まれます.
  • BTSPは,非標準的なメモリクレジット割り当てを提供し,シナプス安定化ニーズを潜在的に軽減します.

結論:

  • BTSPは,特定のエピソードの記憶を形成し,過去の経験から一般化するための新しいメカニズムを提供します.
  • この可塑性は,海馬のネットワークが効率的に情報を保存し,取り出すことを可能にするかもしれません.
  • さらにBTSPの研究は,学習と記憶の調査のシステム,認知,分子レベルを橋渡しすることができます.