脳の全般的な状態がCの底にある. エレガンス睡眠行動

Annika L A Nichols¹, Tomáš Eichler¹, Richard Latham¹

¹Research Institute of Molecular Pathology (IMP), Vienna Biocenter (VBC), Campus-Vienna-Biocenter 1, 1030 Vienna, Austria.

Science (New York, N.Y.)

|June 24, 2017

まとめ

脳は発達中に静止状態に入りほとんどのニューロンが静止します特定のニューロンは睡眠のような状態から脳を再活性化します

科学分野:

神経科学
発達生物学
システム神経科学

背景:

睡眠と覚醒のサイクルのようなグローバルな脳状態の移行を理解することはまだ課題です
異なるグローバル状態を切り替え維持する脳の能力を制御するメカニズムは完全に解明されていません

研究の目的:

脳の発達過程におけるニューラル・ダイナミクスを調べる
脳が静止状態から静止状態への移行を探求するためです

主な方法:

*Caenorhabditis elegans*で単細胞解像度の全脳機能画像を用いた.
麻痺の発達段階における神経活動パターンを分析した.

主要な成果:

ニューロンの活動が低下する傾向がある
ニューロンの小さなサブセットがシステム的なダウンレギュレーションから除外され,活性化していることが観察されました.
静止状態は固定ポイントアトラクターに収束するニューロンの活動から発生することを示した.
静止状態から効率的な自発的,感覚的な脱出を記録した.

結論:

睡眠のようなグローバル状態のニューロンのネットワークはベースラインモードに向かいます
覚醒回路は静止状態からニューロンネットワークを再活性化するのに重要な役割を果たします
この研究は脳状態の調節の基本原理の洞察を提供します

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脳の全般的な状態がCの底にある. エレガンス 睡眠行動