作業記憶と注意を制御する共有メカニズム

Matthew F Panichello¹, Timothy J Buschman^2,3

¹Princeton Neuroscience Institute, Princeton University, Princeton, NJ, USA.

Nature

|April 1, 2021

まとめ

共通の脳のメカニズムが注意力や作業記憶の選択を制御します前頭前皮質は領域全体のコントローラーとして機能し行動や認知プロセスを導くために神経表現を動的に変換します

科学分野:

認知神経科学
意思決定の神経生物学
作業記憶と注意の神経基盤

背景:

神経情報の表現を制御することで行動を制御します
注意と作業記憶は選択メカニズムを含み潜在的に神経的基盤を共有します
前頭皮質と頭皮質は感覚処理と作業記憶の上から下への制御に関与しています

研究の目的:

作業記憶からアイテムを選択し,感覚刺激に耳を傾けるための共有ニューラルメカニズムを調査する.
一般的な認知制御における前頭前野の役割を決定する.
選択と注意の間に神経表現がどのように変換されるかを明らかにする.

主な方法:

作業記憶や視覚的刺激に注意を払うことを要求するタスクにレサス猿を訓練しました
神経記録は,タスクの実行中に前頭前皮質,頭皮質,視覚皮質で行われました.
分析は,選択された記憶項目の神経表現と参加刺激に焦点を当てました.

主要な成果:

前頭前野における類似した表現は作業記憶の選択と注意の両方の制御をコードし, 領域全体の機能を示唆した.
視野皮質と視野皮質は注意と選択の独立した表現を示した.
この2つのプロセスは行動に導くために神経表現を強化し変換し前頭前皮質はダイナミックな表現変換を媒介します

結論:

前頭前皮質は共通の神経機構を利用して作業記憶の選択と注意を制御します
認知制御は前頭前皮質内の神経表現のダイナミックな変換によって達成されます.
これらの発見は脳がどのように柔軟に認知プロセスを制御し表現を変えて行動を導くかを示しています

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