群衆をフォローする:長期記憶の適合性の脳基板
Micah Edelson1, Tali Sharot, Raymond J Dolan
1Department of Neurobiology, Weizmann Institute of Science, Israel. micah.edelson@weizmann.ac.il
Science (New York, N.Y.)
|July 2, 2011
まとめ
社会的影響は,人間の記憶を変化させ,一時的および永続的なエラーの両方を引き起こします. 脳のイメージングは,桃体と海馬との接続が,これらの長期記憶の変化の鍵であることを示しています.
科学分野:
- 認知神経科学とは
- 社会心理学 社会心理学とは
- 神経画像は,神経イメージングによるものです.
背景:
- 人間の記憶は,社会的要因に非常に敏感ですが,神経機構はよく理解されていません.
- 以前の研究によると,社会的な適合性は,思い出す精度に影響を与える可能性があることを示しています.
- 社会的に媒介された記憶の歪みにおける特定の脳領域の役割については,さらなる調査が必要である.
研究 の 目的:
- 社会的に誘発された記憶の誤差の根底にある神経機構を調査する.
- 他人の記憶への曝露が個人の記憶にどのように影響するかを決定する.
- 長期記憶の変化と一時的な記憶の変化に関連した脳シグネチャを特定するために.
主な方法:
- 参加者の記憶は,グループ記憶に曝された後に研究されました.
- 行動データによる適合性評価と記憶エラータイプ (一時的対長期的).
- 機能脳イメージング (fMRI) は,神経の表現と接続パターンを分析した.
主要な成果:
- 参加者はしばしば誤った集団記憶に適合し,一時的および長期的な記憶の誤りを発生させました.
- 社会的影響は,脳の記憶のニューロンの表現を明らかに変えた.
- アミグダラの活動の増加とアミグダラとヒポカンプスの接続性の強化は,長期にわたる記憶の変化を予測したが,一時的な変化ではない.
結論:
- 社会的操作は,適合を通して人間の記憶を大幅に変化させることができます.
- アミグダラは,社会的に媒介された,長期にわたる記憶の歪曲の形成において重要な役割を果たします.
- 発見は, amigdala の既知の機能を拡張し,社会的に影響された記憶の修正を含みます.
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