オキシトシンは人間に対する信頼を高めます
Michael Kosfeld1, Markus Heinrichs, Paul J Zak
1University of Zurich, Institute for Empirical Research in Economics, Blumlisalpstrasse 10, CH-8006 Zurich, Switzerland.
Nature
|June 3, 2005
まとめ
鼻内オキシトシンの投与は,人間の信頼を大幅に高め,社会的相互作用を強化します. この神経ペプチドは,一般的にリスクを取るのではなく,社会的リスクを受け入れる意欲を特に高めます.
科学分野:
- 神経科学は神経科学である.
- 社会心理学 社会心理学とは
- 経済学 経済学
背景:
- 信頼は,社会の機能,経済交流,政治的安定に不可欠です.
- 信頼の重要性は認められているが,人間における信頼の生物学的基盤はほとんど未調査のままである.
- オキシトシンは,哺乳類の社会的結合に不可欠な神経ペプチドであり,人間の信頼を媒介する候補である.
研究 の 目的:
- 人間に対する信頼の生物学的な根拠を調査する.
- 鼻内オキシトシンの投与が人間の信頼レベルに影響するかどうかを判断する.
- オキシトシンの社会的リスクと一般的リスクを負う効果を区別する.
主な方法:
- 人間参加者は鼻内オキシトシンまたはプラセボを投与された.
- 信頼は,社会的な相互作用に参加する意思を測定する行動経済ゲームを通じて評価されました.
- リスクを取る傾向は,社会的信頼に対する特定の影響を区別するために評価されました.
主要な成果:
- 鼻内オキシトシン投与は,参加者の信頼を大幅に高めました.
- オキシトシンの効果は,社会的リスク承受に特異的であり,リスク耐性の一般的な増加ではありませんでした.
- オキシトシンが媒介する信頼の増大は,社会的相互作用から得られる恩恵を高めました.
結論:
- オキシトシンは,人間の信頼の生物学的な基礎において重要な役割を果たします.
- オキシトシンは,個人的社会的リスクへの意欲を特に調節する.
- これらの発見は,オキシトシンのプロ社会的行動と社会的属性を促進する機能を支持しています.
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