イベント構造は,側頭葉皮質のニューラル集団動態を彫刻する
Benjamin R Kanter1, Christine M Lykken1, Ignacio Polti1
1Kavli Institute for Systems Neuroscience and Centre for Algorithms in the Cortex, Norwegian University of Science and Technology, Trondheim, Norway.
まとめ
脳のニューラル集団の活動
科学分野:
- 神経科学
- システム神経科学
背景:
- 脳は連続した感覚の入力を 複数の時間スケールで 離散的なイベントに整理しなければなりません
- 時間の分割と組織の神経機構はよく理解されていません.
研究 の 目的:
- 脳の時間的な組織の 神経的基盤を調査する
- 自由に行動するネズミのニューラル集団の活動がどのように分割され,イベントをコードするかを特定する.
主な方法:
- 自由に行動するネズミの 側頭葉皮質の何百から数千の ニューロンを同時に記録する
- 様々な行動や睡眠状態における ニューラル集団動態の分析
主要な成果:
- 神経集団の活動は 連続した1次元のドリフトを示し 本質的な起源を示唆しています
- イベント境界における集団動態の離散的なシフトは 神経活動を時間単位に分割する.
- 構造化されたタスク中の複数の時間スケールでドリフトにコードされたイベント情報に直交するアクティビティ.
結論:
- 横の脳内皮質は イベントを時間的に整理するために 階層的なコード化スキームを利用します
- このスキームは,一般的な時間的な組織と,イベント固有のエンコーディングのための直交的なダイナミクスを含む.
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