地上情報を統合する指向的なプロセスによって距離を正確に感知する
Bing Wu1, Teng Leng Ooi, Zijiang J He
1Department of Psychological and Brain Sciences, University of Louisville, Louisville, Kentucky 40292, USA.
Nature
|March 6, 2004
まとめ
人間は,ローカルな地上情報をグローバルフレームに統合することによって,最大20mまでの距離を正確に判断します. この視覚的知覚は,正確な絶対距離計算のために,近くから遠くまで地面のパッチをスキャンすることに依存しています.
科学分野:
- 視覚的知覚 視覚的な知覚
- 人間の空間的認知能力
背景:
- 絶対的な距離判断は,外部のヒントなしに2-3mを超えて制限されます.
- 人間は平らな地形を基準に20mまでの距離を正確に判断します.
- この能力は,人間の様々な行動において極めて重要です.
研究 の 目的:
- 地形を用いた正確な絶対距離判断のメカニズムを調査する.
- ローカル・グラウンド・インフォメーションをグローバル・サフェア・レファレンス・フレームに統合するための証拠を提供する.
- 遠隔感知における視野の範囲とスキャン方向の役割を理解する.
主な方法:
- 観測者の視野を局所地面に制限する.
- 制限された視点で距離の過小評価を評価する.
- 地元の地面パッチをスキャンした結果 (近くから遠くへ vs. 遠くから近くへ) が,距離判断の精度に与える影響を分析する.
主要な成果:
- 視野を局所的な地面領域に制限すると,距離が過小評価される.
- 距離を正確に判断することは,近くから遠くまで順番に地面のパッチをスキャンすることによって,制限された視野で可能でした.
- 遠くから近くまでスキャンすると,正確な距離判断が得られませんでした.
結論:
- 20mまでの距離を正確に判断するには,ローカルな地上情報を地球表面の基準枠に統合する必要があります.
- 距離を正確に判断するには,広大な地面が必要である.
- このプロセスは,より遠い距離へのエキストラポレーションの基礎として,近地情報を使用します.
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