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Updated: Jan 13, 2026

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Assessment of Social Transmission of Food Preferences Behaviors
Published on: January 25, 2018
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親は長期的な嫌悪習慣化を発達させるが、それは子供の離乳を開始した後のみである
Yifan Huang1, Ivo E Dalmaijer-Denning2, Joris A Dalmaijer-Denning2
1School of Psychological Science, University of Bristol, Bristol, UK.
Scandinavian journal of psychology
|January 6, 2026
まとめ
親になることは、特に子供が離乳した後は、体液に対する嫌悪感の感受性を大幅に低下させる。この長期的な習慣化は、初期の嫌悪感の引き金を超えて、育児に対する適応的な反応を示唆している。
科学分野:
- 心理学;進化生物学;人間行動
背景:
- 嫌悪感は、病原体や病気を避けるための重要な感情である。;嫌悪感の短期的な習慣化は可能であるが、長期的な習慣化は不明なままである。;親になることは、体液へのユニークで長期的な曝露を提供する。
研究 の 目的:
- 親になるという準実験を通じて、嫌悪感の長期的な習慣化を調査すること。;親の体液への曝露が嫌悪感の感受性と回避行動を低下させるかどうかを判断すること。;育児における嫌悪感調節の潜在的な適応的機能を調査すること。
主な方法:
- 親(N=99)と対照群(N=50)の嫌悪感の感受性と回避を比較した。;親特有の嫌悪感アンケートと、子供関連の刺激(汚れたおむつ)を用いた行動課題を利用した。;離乳前および離乳後の便刺激に対する反応を評価した。
主要な成果:
- 離乳した子供を持つ親は、対照群と比較して体液の回避が有意に減少した。;離乳前の子供を持つ親は、対照群と同様の嫌悪回避を示した。;おむつの中身への習慣化は、親の他の形態の体液への嫌悪にも一般化した。
結論:
- 長期的な嫌悪感への習慣化は、離乳した子供の親によって実証されたように、長期的な曝露を通じて達成可能である。;親における嫌悪感の感受性の低下は、育児を容易にする適応的なメカニズムである可能性がある。;初期の育児における嫌悪感の反応の増加は、脆弱な乳児を保護する可能性がある。
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