マウスの皮質 - 基礎ゲングリア - タラミックネットワーク
Nicholas N Foster1,2, Joshua Barry3, Laura Korobkova4
1UCLA Brain Research and Artificial Intelligence Nexus, Department of Neurobiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA. nnfoster@mednet.ucla.edu.
Nature
|October 7, 2021
まとめ
研究者は脳の皮質-基礎性ガンジリア-タラモ-皮質のループをマッピングし 6つの並列サブネットワークを明らかにしました この詳細なマッピングは 脳の機能と障害の理解を進めるのです
科学分野:
- 神経科学
- システム神経科学
- 計算神経科学
背景:
- 皮質-基礎のギャングリア-タラモ-皮質のループは 認知と行動に不可欠です
- 基礎臓の機能を説明するには,古典的な3チャネルモデル (運動,辺縁,結合) が不十分です.
研究 の 目的:
- 多シナプス出力経路を図示する.
- 皮質 - 基礎 - ガングリア - タラモ - 皮質のループ内の機能的なサブネットワークを特定する.
主な方法:
- 皮質の入力に基づく機能領域に分割する.
- グロブス・パリドゥスの外側 (GPe),黒い物質の網状部分 (SNr) およびタラムスを経由した多シナプス出力を追跡する.
- SNr,GPe,thalamicドメインと皮質-SNrのプロジェクションの識別
主要な成果:
- 14のSNRと36のGPeドメインを特定した.
- 6つのタラミックドメイン (パラファシキュラとベントロメディアル核) の線引き.
- 閉路組織を持つ6つの並列の皮質・基礎・ガンジリア・タラミックサブネットワークの発見
結論:
- この研究は,前述のより複雑な組織である皮質-基礎性ガンジリア-タラモ-皮質のループを明らかにした.
- 6つの並列サブネットワークが 特定の皮質情報を 連続して処理します
- この詳細なマッピングは 脳機能と神経学的障害を理解するための枠組みを提供します
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