ノイズ下におけるブールネットワークのAttractor遷移ダイナミクス
Byungjoon Min1,2,3, Jeehye Choi2, Reinhard Laubenbacher3
1Department of Physics, Chungbuk National University, Cheongju, Chungbuk 28644, South Korea.
Chaos (Woodbury, N.Y.)
|February 23, 2026
まとめ
ノイズはAttractor間の遷移を引き起こすことによって生物学的システムに影響を与えます。局所的なノイズは構造化されたパターンを作成し、安定性と多様性を高めますが、大域的なノイズはベースラインサイズに依存します。
科学分野:
- 複雑系生物学
- 計算論的神経科学
- ネットワークダイナミクス
背景:
- 生物学的システムは本質的にノイズが多く、そのダイナミクスと状態遷移に影響を与えます。
- Attractorは生物学的ネットワークにおける安定した状態を表しますが、ノイズによってそれらが破壊される可能性があります。
研究 の 目的:
- ノイズ(局所的および大域的)がブールネットワークにおけるAttractorダイナミクスにどのように影響するかを調査すること。
- 支配、安定性、多様性などのAttractor特性を定量化する方法を開発すること。
主な方法:
- 確率的摂動下でのブールネットワークの解析。
- ネットワークAttractor間の遷移確率の計算。
- Attractorランドスケープに対する局所的対大域的ノイズ効果の比較。
主要な成果:
- 大域的なノイズは主にベースラインサイズによって決定されるAttractorの振る舞いを引き起こします。
- 局所的なノイズは構造化された遷移パターンを誘発し、Attractorの安定性と多様性を高めます。
- 局所的なノイズ下では非自明な支配パターンが現れ、複雑なネットワーク応答を明らかにします。
結論:
- ノイズ誘発遷移は、生物学的システムのダイナミクスを理解するために重要です。
- 局所的なノイズは、大域的なノイズよりもAttractorに対してより微妙な影響を与えます。
- Attractor遷移パターンは、確率的条件下でのネットワーク挙動を探索するための鍵となります。
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