背中側前頭皮質における複雑な社会的決定のための基本機能
Marco K Wittmann1,2,3, Yongling Lin4,5, Deng Pan6
1Department of Experimental Psychology, University College London, London, UK. m.wittmann@ucl.ac.uk.
Nature
|March 13, 2025
まとめ
脳は,背中前頭皮質 (dorsomedial prefrontal cortex,dmPFC) と前帯状皮質 (anterior cingulate cortex,ACC) にある圧縮された神経コードを用いて社会的相互作用を表現する. これらのコードは個々のアイデンティティではなく 相互作用の種類を捉え 神経処理の深い類似性を明らかにします
科学分野:
- 神経科学
- 認知科学
- 社会心理学
背景:
- 脳は"自己"や"他者"のような個人に知識をタグ付けすることで 代理人中心の方法で情報を表現することで 社会的環境をナビゲートします
- 社会的認知に関与する主要な脳領域には,ドロスメディアル前頭皮質 (dmPFC) と前帯状皮質 (ACC) が含まれる.
研究 の 目的:
- 脳が社会的な相互作用の 組み合わせの可能性をどのように表すかを調査する.
- dmPFCとACCのニューラル表現が相互作用タイプや個々のアイデンティティと一致するかどうかを判断する.
主な方法:
- 4つの研究で機能的磁気共鳴画像 (fMRI) を利用した.
- 行動実験と 社会的集団の意思決定を 採用した.
主要な成果:
- dmPFCとACCは,社会的な交流の組み合わせの可能性を表しています.
- これらの表現は圧縮形式で,他の領域で使用される基本関数に類似しています.
- ニューラル表現は 個人のアイデンティティではなく 社会的相互作用のタイプと一致します
結論:
- 脳は個人のアイデンティティではなく 状況上の可能性に基づいて 社会的相互作用をコードします
- 感覚/運動領域のニューラル・コーディング・スキームと 社会的アイデンティティの構築の間には深い類似点がある.
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