脳の概念的表現を形作る 個々の違い
Matteo Visconti di Oleggio Castello1,2, Tom Dupré la Tour1, Jack L Gallant1,2
1Helen Wills Neuroscience Institute, University of California, Berkeley; Berkeley, CA 94720, USA.
bioRxiv : the preprint server for biology
|September 2, 2025
まとめ
概念的表現における 個々の脳の違いを測定するための 新しい統計的枠組みを開発しました このアプローチは 特定の人の脳のバイアスを明らかにし 精密な神経科学と 認知障害のパーソナライズド医療の道を開きます
科学分野:
- 認知神経科学
- 神経イメージング
- 個々 の 違い
背景:
- 個々の経験が 独特の概念的理解を形作りますが 認知神経科学では これらの違いを測定するのは難しいのです
- これは認知障害に対する 精密医療の限界です
- 既存の方法は 特定の人の機能的な脳表現を捉えるのに苦労しています
研究 の 目的:
- 機能的な脳の表現における個々の差異を測定し解釈するための新しい統計的枠組みを開発する.
- 異なる個人が 脳の同じ概念を 表現する様子を特徴づけるのです
- 精密神経科学の 新しいパラダイムを確立するために
主な方法:
- 機能的磁気共鳴画像 (fMRI) を用いて,物語を聞いている24人の参加者の脳活動を測定した.
- fMRIデータから概念的な表現を解読するためにエンコーディングモデルが使用されました.
- これらの表現における体系的な個々の差異を特定するために,統計的分析が行われました.
主要な成果:
- 同様の刺激にもかかわらず,概念的な脳表現における体系的な,個別的なバイアスが観察されました.
- 社会的情報処理に関連する脳の領域で個別の変動が最も顕著でした.
- これらの違いは,感覚の入力と個人的な信念/経験の統合と相関しています.
結論:
- 概念的な脳の表現における 個々の違いは 体系的で測定可能なものです
- 開発されたフレームワークは,個人特有の機能的な脳マップの研究を可能にします.
- この研究は 精密神経科学と 認知障害の精密医学における fMRI 応用のための基盤を提供する.
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