心肺時変相互作用における生理学的ノイズ
Dushko Lukarski1,2, Dushko Stavrov3, Tomislav Stankovski1,4
1Faculty of Medicine, Ss. Cyril and Methodius University in Skopje, 1000 Skopje, North Macedonia.
Entropy (Basel, Switzerland)
|January 28, 2026
まとめ
本研究では、生物学的システムにおける生理学的ノイズを検出する方法を導入し、心肺信号に適用して、呼吸変動に関連する明確なノイズパターンを特定した。
科学分野:
- 生理学
- 複雑系
- 統計モデリング
背景:
- 生理学的システムは動的であり、摂動の影響を受けやすい。
- 動的ノイズは、生物学的システムに大きな変化や遷移を引き起こす可能性がある。
- 生理学的ノイズを理解し定量化することは、システム挙動の分析に不可欠である。
研究 の 目的:
- 時間変化する生物学的システムから動的な生理学的ノイズを検出し抽出する方法を開発すること。
- ノイズを分析する際に、生物学的システム内の時間変化するダイナミクスを考慮すること。
- 様々な呼吸パターン下での心肺信号にこの方法を適用し、検証すること。
主な方法:
- 確率微分方程式をモデル化するために力学的ベイズ推論を利用した。
- 相互作用する振動子の位相ダイナミクスに焦点を当てた。
- 制御された呼吸変動(自発的、正弦波、ランプ状、非周期的)を伴う心肺データにこの枠組みを適用した。
主要な成果:
- 異なる呼吸パターンにおける呼吸力学の生理学的ノイズの有意差を実証した。
- 摂動された呼吸は、相互作用を介して心臓力学の動的ノイズにその影響を伝達しなかった。
- 心肺応用は、方法論的枠組みの可能性を検証した。
結論:
- 開発された方法は、時間変化する生物学的システムにおける動的な生理学的ノイズを効果的に検出し定量化する。
- 呼吸パターンは呼吸の生理学的ノイズに大きく影響するが、心臓のノイズには影響しない。
- この枠組みは、ノイズ分析のために他の生理学的システムにも広く適用可能である。
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