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相关概念视频

Long-term Potentiation01:35

Long-term Potentiation

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.
Long-term Depression01:05

Long-term Depression

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.
Long-term Potentiation01:25

Long-term Potentiation

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 presynaptic neurons...
Long-term Depression01:03

Long-term Depression

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 time, all...
Neuroplasticity01:01

Neuroplasticity

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.
Amnesia01:13

Amnesia

Amnesia is a condition marked by long-term memory loss, which impairs the ability to recall past events or create new memories.
The severity and duration of memory loss vary depending on the type and underlying cause. Amnesia is classified into two main types: retrograde and anterograde.
Retrograde amnesia is marked by the loss of memories formed before the onset of the condition. Patients may recall distant past events but often forget those occurring shortly before the incident.
Anterograde...

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相关实验视频

Updated: Jul 6, 2026

Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury
10:59

Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury

Published on: November 19, 2012

在长时间的感官和感知剥夺后的脑电图变化.

J P ZUBEK, G WELCH

    Science (New York, N.Y.)
    |March 22, 1963
    PubMed
    概括
    此摘要是机器生成的。

    七天暴露在无图案的光和白噪声下,叶频率比黑暗和寂静更大. 这表明,感官过度刺激可能导致神经和行为障碍.

    关键词:
    电脑发光学图形 电脑发光学图形感官剥夺 感官剥夺

    更多相关视频

    Use of a Wireless Video-EEG System to Monitor Epileptiform Discharges Following Lateral Fluid-Percussion Induced Traumatic Brain Injury
    09:16

    Use of a Wireless Video-EEG System to Monitor Epileptiform Discharges Following Lateral Fluid-Percussion Induced Traumatic Brain Injury

    Published on: June 21, 2019

    Assessing Changes in Synaptic Plasticity Using an Awake Closed-Head Injury Model of Mild Traumatic Brain Injury
    09:49

    Assessing Changes in Synaptic Plasticity Using an Awake Closed-Head Injury Model of Mild Traumatic Brain Injury

    Published on: January 20, 2023

    相关实验视频

    Last Updated: Jul 6, 2026

    Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury
    10:59

    Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury

    Published on: November 19, 2012

    Use of a Wireless Video-EEG System to Monitor Epileptiform Discharges Following Lateral Fluid-Percussion Induced Traumatic Brain Injury
    09:16

    Use of a Wireless Video-EEG System to Monitor Epileptiform Discharges Following Lateral Fluid-Percussion Induced Traumatic Brain Injury

    Published on: June 21, 2019

    Assessing Changes in Synaptic Plasticity Using an Awake Closed-Head Injury Model of Mild Traumatic Brain Injury
    09:49

    Assessing Changes in Synaptic Plasticity Using an Awake Closed-Head Injury Model of Mild Traumatic Brain Injury

    Published on: January 20, 2023

    科学领域:

    • 神经科学是一个神经科学.
    • 感官处理 感官处理

    背景情况:

    • 感官刺激,如光和噪音,可以影响大脑活动.
    • 了解长时间感官暴露的影响对于神经健康至关重要.

    研究的目的:

    • 研究感官刺激 (光和噪音) 与感官剥夺 (黑暗和沉默) 对大脑活动的差异影响.
    • 探索感官暴露和潜在的行为障碍之间的关系.

    主要方法:

    • 试验对象在七天内暴露在无模式的光线和白噪声中.
    • 另一组对照组在相同的时间内经历了黑暗和沉默.
    • 测量了叶频率,以评估神经系统的变化.

    主要成果:

    • 在暴露于光和噪音的组中观察到叶频率的显著下降.
    • 与黑暗和沉默组相比,叶频率的下降显著更大.

    结论:

    • 无图案的光和白噪声暴露显著影响叶活动.
    • 长时间的感官过度刺激可能与神经和行为缺陷有关.