驚きと出会う個性:予期せぬ出来事の記憶における個人差
Alex Kafkas1, Matt Westerman1, Keith Cleto1
1Andrew Mayes Centre for Cognitive Neuroscience, School of Health Sciences, University of Manchester, Manchester, United Kingdom.
Frontiers in psychology
|December 24, 2025
まとめ
性格特性は予期せぬ出来事の記憶に影響を与える。不安やリスクテイキングが低いと予期せぬ刺激の想起が向上する一方、外向性が低い、またはネガティブ感情が高いといった特性は、この効果を低下させる。
科学分野:
- 認知心理学
- 神経科学
- パーソナリティ心理学
背景:
- 期待は記憶符号化に影響を与え、予期せぬ刺激は通常、より良い想起につながります。
- 個々の性格特性がこの期待と記憶の関係にどのように影響するかは、よく理解されていません。
研究 の 目的:
- 性格特性が、期待される出来事と予期せぬ出来事の記憶符号化をどのように調節するかを調査すること。
- 性向的要因が予期せぬ刺激に対する想起の利点を形作るかどうかを判断すること。
主な方法:
- 参加者が記号と刺激の関連性を学習する2つの実験が実施されました。
- 符号化中に一部の刺激で関連性が違反され、その後、認識記憶テストが行われました。
- 実験1では、状態・特性不安とリスクテイキングを測定しました。実験2では、ビッグファイブの性格特性を評価しました。
主要な成果:
- 予期せぬ出来事は、両方の実験で一貫して想起を改善しました。
- この想起の利点の大きさは、性格特性によって調整されました。
- 低い特性不安とリスクテイキング、および低い外向性/高いネガティブ感情は、予期せぬ出来事に対する想起の利点の低下と関連していました。
結論:
- 性格特性は、記憶形成に対する期待の影響を動的に形作ります。
- 性向的要因の個人差は、記憶符号化などの認知プロセスと相互作用します。
- 発見は、記憶理論に洞察を提供し、潜在的な応用上の意味合いを持っています。
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