手による指し示しバイアスは数知識の空間的編成を反映する
Carlotta Isabella Zona1, Martin H Fischer2
1Potsdam Embodied Cognition Group, Department of Psychology, University of Potsdam, Karl-Liebknecht-Strasse 24-25, House 14, OT Golm, 14476, Potsdam, Germany. zona@uni-potsdam.de.
Scientific reports
|February 11, 2026
まとめ
手による指し示しにおける空間数関連付け(SNA)を調査した。発見は、数値差が2D距離として表され、指し示しタスクにおける垂直SNAを支持することを示唆している。
科学分野:
- 認知心理学
- 神経科学
- 空間認知
背景:
- 数の概念は、メンタル数直線(MNL)上に空間的に編成されることが多い。
- 手による指し示しにおける空間数関連付け(SNA)の証拠は混在している。
- 以前のタスクは、物理的配置と数値的配置を混同し、SNAの研究を妨げていた。
研究 の 目的:
- 新しい2段階タスクを用いて、手による指し示しにおけるSNAを調査すること。
- 数定位における物理的距離と数値的距離を分離すること。
- 水平および垂直SNAの出現を調べること。
主な方法:
- タッチスクリーン上での2段階指し示しタスクが採用された。
- 最初のステップは、中心ターゲットへの空間不変、大きさ非依存の動きを含んだ。
- 参加者は、2番目のステップで時計文字盤配置で話し言葉の数を定位した。
主要な成果:
- 指し示し位置間の数値距離とユークリッド距離は正の相関があった。
- 時計文字盤の距離と数値差は、指し示し位置間のユークリッド距離を予測した。
- 正の大きさの変化は、指し示し位置の左方および上方へのシフトにつながった。
結論:
- 数値差は、2D物理的距離として表すことができる。
- この研究は、手による指し示しにおける垂直SNAの出現を支持する。
- 発見は、概念的知識の低次元、空間的に編成されたモデルと一致する。
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