白質の構造は,半球言語の横行化に関連しているのでしょうか? システマティック・レビュー

Ieva Andrulyte¹, Eszter Demirkan², Francesca M Branzi²

¹Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L7 8TX, UK.

Brain communications

|February 16, 2026

まとめ

このレビューでは,拡散MRIを用いた機能的な言語の横向化における白質を調査します. 発見は,弓状筋のような経路を言語の優位性と結びつけていますが,特に健康な個体では,結果は異なります.

科学分野:

神経画像は,神経イメージングによるものです.
神経科学は神経科学である.
ホワイトマター研究ホワイトマター研究

背景:

機能的な言語の横行化は複雑である.
拡散MRIは,白質の役割についての洞察を提供します.
言語の優位性に関連した白質の理解は極めて重要です.

研究の目的:

白い物質と機能的な言語の優位性に関する拡散MRI研究を体系的にレビューする.
言語の横向化に関連した白質の領域に関する発見を合成する.
課題を特定し,将来の研究方向性を提案する.

主な方法:

Web of Science,Scopus,およびOvid MEDLINEの体系的な文献検索を行いました.
成人を対象とした25件の研究 (,腫瘍,健康な対照群) を含む.
拡散MRIメトリックの分析と言語横行化との関連.

主要な成果:

弓状筋筋と筋は,臨床グループで言語の横行化とよく関連しています.
健康な個体での発見は,ハンドネスによって影響を受け,変数です.
側頭葉の領域は,前頭部領域よりも強い拡散MRI相関を示しています.

結論:

言語の横行化における白質の役割は複雑で,人口に依存しています.
方法論的な矛盾は,研究間の比較を妨げています.
将来の研究には,より大きなサンプル,全脳アプローチ,標準化された方法が必要です.

キーワード:

拡散MRIによるMRIです.言語の裏側化 (lateralization) についてシステマティック・レビュートラクトグラフィトラクトグラフィトラクトグラフィトラクトグラフィホワイトマターの非対称性

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