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認知制御におけるドロソラテラル前頭前皮質と前帯状皮質の役割の解離
A W MacDonald1, J D Cohen, V A Stenger
1Department of Psychology, University of Pittsburgh, Pittsburgh, PA 15260, USA.
Science (New York, N.Y.)
|June 10, 2000
まとめ
認知制御は,機能の実装とモニタリングを伴う. この研究では,それぞれに異なる脳領域が発見されました:制御の実施のための左ドロスラテラル前頭皮質とパフォーマンス監視のための前帯状皮質です.
科学分野:
- 神経科学は神経科学である.
- 認知心理学とは,認知心理学である.
背景:
- 認知制御理論は,コントロールの実施とパフォーマンスのモニタリングという2つの重要な要素を提唱しています.
- これらのコンポーネントのニューラル基盤を理解することは,認知神経科学にとって極めて重要です.
研究 の 目的:
- 認知制御の実装とモニタリングのコンポーネントには,異なる神経基盤があるかどうかを調査する.
- 神経画像を用いて,これらの機能を特定の脳領域にマッピングする.
主な方法:
- イベント関連機能性磁気共鳴画像 (fMRI) を利用しました.
- 認知制御の要求を誘発するために,タスクスイッチングのStroopタスクを使用しました.
主要な成果:
- 神経活動の二重解離が観察されました.
- 左側ドロソラテラル前頭皮質 (ブロドマン領域9) は,タスクの準備 (コントロールの実施) 中の活動が増加した.
- 前帯状皮質 (ブロドマン領域24と32) は,不一致の刺激反応 (パフォーマンスモニタリング) 時により高い活性を示した.
結論:
- 発見は,認知制御の実施とモニタリングのための明確な神経基板をサポートします.
- 左背側側前頭前皮質は,制御の実施に関与しています.
- 前帯状皮質は,パフォーマンスモニタリングと関連しています.
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