慢性的にストレスを感じている学校の教師の心臓のインターオセプティブ精度と心臓の鼓動に起因するポテンシャルに対する急性および慢性的なストレスの影響
André Schulz1, Silja Bellingrath2, Annika Lutz3
1Clinical Psychophysiology Laboratory, Department of Behavioural and Cognitive Sciences, University of Luxembourg, Esch-sur-Alzette, Luxembourg; Institute for Cognitive and Affective Neuroscience, Trier University, Trier, Germany.
Psychoneuroendocrinology
|August 31, 2025
まとめ
急性ストレスは 体の内部の信号に 注意を向けますが 慢性ストレスは この効果を逆転させます 慢性的なストレスはまた,これらの信号に対する知覚の限界を高め,潜在的に体内の症状障害に寄与します.
科学分野:
- 心理学
- 神経科学
- 精神生理学
背景:
- ストレス関連の障害では 内部信号の知覚が変化します
- 慢性的なストレスが 腸内受容に与える影響は 解明されていないが 健康への影響は わかっている.
- 学校の教師は 慢性的なストレスや 潜在的知覚障害に敏感な集団です
研究 の 目的:
- 急性および慢性的なストレスがインターオセプティブ精度 (IAc) とインターオセプティブ注意力 (IAt) に与える影響を調査する.
- 実験室で誘発された急性ストレスが 教師の脳内受容にどのように影響するかを調べる
- 慢性的なストレスレベルと 腸内受精における急性ストレス反応の関係を調べる
主な方法:
- 参加者は,社会的に評価された冷圧器検査 (SECPT) の前後に心臓の整体感受を評価するために,心拍数計と注意散漫のタスクを完了しました.
- ハートビート誘発ポテンシャル (HEPs) は,心臓のインターオセプティブ注意 (IAt) を測定した.
- 唾液中のコルチゾール,心拍数,血圧をモニタリングし,慢性ストレスを自己報告し,髪のコルチゾール/DHEA比を分析した.
主要な成果:
- SECPTは 心拍数,血圧,コルチゾールの上昇によって 強いストレスを誘発することに成功しました
- 心拍数計の作業中のHEPの増加によって示されるように,急性ストレスは心臓のIATを強めた.
- 慢性的なストレスは,IATに対する急性ストレスの効果を逆転させ,コルチゾール/ DHEA比率によって心臓のIAcと負の関係があった.
結論:
- 急性ストレスは 視界の信号に 注意を集中させます
- 慢性的なストレスは 感知信号に注意を払う能力を低下させ 感知の限界を高めます
- 慢性的なストレスの下にあるこれらのインターオセプティブの変化は,ストレス関連の障害における体的症状発生の基礎となるメカニズムである可能性があります.
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