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Overview of Synapses01:25

Overview of Synapses

2.9K
A synapse is a specialized structure where two neurons connect, allowing them to pass an electrical or chemical signal to another neuron. It is the point of communication between neurons. The term "synapse" is derived from the Greek word "synapsis," which means "conjunction." The entire process of neural communication revolves around the synapse. When activated, a neuron releases chemicals known as neurotransmitters into the synapse. These neurotransmitters cross the synapse and bind to...
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Brain Waves01:23

Brain Waves

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Brain waves are electrical signals generated by the neurons in the brain, which are regularly monitored to measure mental activities. Brain waves and their frequency ranges can be measured using an electroencephalogram or EEG. There are four main types of brain waves, each with distinct characteristics:
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Neural Regulation01:37

Neural Regulation

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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.
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Sleep-Wake Cycles01:24

Sleep-Wake Cycles

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Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and  rapid eye movement (REM).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
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Circadian Rhythms and Gene Regulation02:19

Circadian Rhythms and Gene Regulation

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The biological clock is involved in many aspects of regulating complex physiology in all animals. It was in 1935 when German zoologists, Hans Kalmus and Erwin Bünning, discovered the existence of circadian rhythm in Drosophila melanogaster. However, the internal molecular mechanisms behind the circadian clock remained a mystery until 1984, when Jeffrey C. Hall, Michael Rosbash, and Michael W. Young discovered the expression of the Per gene oscillating over a 24-hour cycle. In subsequent...
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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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Updated: Sep 2, 2025

Optogenetic Entrainment of Hippocampal Theta Oscillations in Behaving Mice
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神経リズムを同期する

Robert M G Reinhart1,2

  • 1Cognitive and Clinical Neuroscience Laboratory, Department of Psychological and Brain Sciences, Boston University, Boston, MA, USA.

Science (New York, N.Y.)
|August 4, 2022
PubMed
まとめ
この要約は機械生成です。

パーソナライズされた非侵襲的な神経調節技術は 障害のある人の認知機能を改善します このネットワークベースのアプローチは 認知能力を向上させる 有望な道を示しています

さらに関連する動画

Inter-Brain Synchrony in Open-Ended Collaborative Learning: An fNIRS-Hyperscanning Study
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Quantifying Infra-slow Dynamics of Spectral Power and Heart Rate in Sleeping Mice
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Last Updated: Sep 2, 2025

Optogenetic Entrainment of Hippocampal Theta Oscillations in Behaving Mice
07:33

Optogenetic Entrainment of Hippocampal Theta Oscillations in Behaving Mice

Published on: June 29, 2018

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Inter-Brain Synchrony in Open-Ended Collaborative Learning: An fNIRS-Hyperscanning Study
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Inter-Brain Synchrony in Open-Ended Collaborative Learning: An fNIRS-Hyperscanning Study

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Quantifying Infra-slow Dynamics of Spectral Power and Heart Rate in Sleeping Mice
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Quantifying Infra-slow Dynamics of Spectral Power and Heart Rate in Sleeping Mice

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科学分野:

  • 神経科学
  • 認知科学
  • バイオメディカルエンジニアリング

背景:

  • 認知障害は日常生活や生活の質に 大きく影響します
  • 現在の認知障害の治療戦略には 限界があります
  • ネットワークベースのアプローチは 脳機能に関する新しい洞察を 提供します

研究 の 目的:

  • 認知機能の強化のためのパーソナライズされた,非侵襲的なネットワークベースの神経調節の有効性を調査する.
  • 特定の認知領域を改善できるかどうかを判断する
  • 認知の改善の 神経的メカニズムを探求する

主な方法:

  • 先進的な神経イメージング技術を使って 個々の脳ネットワークをマッピングした
  • ネットワーク分析に基づいたパーソナライズされた神経調節プロトコルを開発しました.
  • 特定の脳領域を標的とした非侵襲的な脳刺激方法 (TMS,tDCSなど) を採用した.
  • 介入前と後の標準化された神経心理学的テストを用いて認知能力を評価した.

主要な成果:

  • 記憶,注意,実行機能など,重要な認知機能の有意な改善が観察されました.
  • パーソナライズされた神経調節は 非パーソナライズされたアプローチと比較して より大きな認知的利益をもたらしました
  • ネットワーク分析により 脳の接続パターンの変化が 認知機能の改善と相関していることが分かりました
  • 介入の非侵襲的な性質は,被験者によってよく許容された.

結論:

  • パーソナライズされた非侵襲的なネットワークベースの神経調節は 認知障害を助けるための実行可能で効果的な戦略です
  • このアプローチは,様々な神経学的および精神的疾患に対する 標的型介入の開発の可能性を秘めています.
  • 将来の研究は,長期的な有効性やより広範な臨床応用に焦点を当てなければならない.