知覚的暴露がボディサイズ認識と反脂肪態度に影響を与える
K L Neuenswander1, E Hehman2, K L Johnson3,4
1Department of Psychology, University of Toronto, Toronto, ON, Canada. kelsey.neuenswander@utoronto.ca.
Communications psychology
|January 28, 2026
まとめ
より大きな体型の視覚的暴露が増加すると、反脂肪態度が減少する可能性がある。この研究は、日常生活やメディアで多様な体型を見ることが体重に対する偏見にどのように影響し、認識の閾値に影響を与えるかを調査した。
科学分野:
- 心理学
- 社会学
- 公衆衛生
背景:
- 反脂肪態度は、重大な社会的および健康上の悪影響をもたらす。
- 体重に対する偏見を減らすメカニズムを理解することは、公衆衛生にとって極めて重要である。
研究 の 目的:
- 反脂肪態度を減らす方法として、多様な体型の知覚的暴露を調査すること。
- 環境的およびメディア的暴露が体重に対する偏見に及ぼす影響を調べること。
主な方法:
- 肥満率と暗黙的/明示的な反脂肪態度に関する米国郡レベルデータの分析。
- フランスのメディアデータを、極端に痩せたモデルの禁止前と後で調査。
- 参加者を毎日痩せた体型または脂肪の体型に暴露させる2週間の縦断的研究。
主要な成果:
- 肥満率が高い(より大きな体型への暴露が多い)ほど、明示的な反脂肪態度が低いことと相関していた。
- フランスでの痩せたモデルの禁止後、明示的な反脂肪態度は減少した。
- 脂肪の体型への暴露はボディサイズのカテゴリー化の閾値を上げたが、痩せた体型はそれを下げた。
結論:
- 知覚的暴露はボディサイズのカテゴリー化に影響を与え、時間の経過とともに明示的な反脂肪態度を減らす可能性がある。
- 暗黙的な態度への影響は一貫性がなく、複雑な心理的プロセスを示唆している。
- 明示的および暗黙的な偏見に対する長期的な影響と異なる影響を理解するためには、さらなる研究が必要である。
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