まとめ
ヒトの乳児は,25cm+の深さで片目を覆って正常な視覚的な崖回避を示しました. 幼い乳児 (9ヶ月未満) は12.7cmの単眼の弱さを示し,開いている目に向かって回った.
科学分野:
- 発達心理学の心理学について
- 人間の乳幼児の視力は,
- 感知する深さの感知です.
背景:
- 深さの知覚は,幼児のナビゲーションと安全にとって極めて重要です.
- 幼児が双眼視力をどのように発達させ,どのように利用するかを理解することは,発達研究にとって不可欠です.
- 視覚的な崖のパラダイムは,幼児の深さの知覚を評価するために広く使用される方法です.
研究 の 目的:
- 人間の乳児の視覚の崖の上のパフォーマンスに対する一時的な単眼視力の影響を調査する.
- 視覚の崖で赤ん坊が単眼視力を補う年齢を決定する.
- 単眼条件下での深さの知覚における潜在的な弱点を特定する.
主な方法:
- 人間の赤ちゃんは,一時的な単眼視力を誘発するために,眼パッチを装着されました.
- 赤ちゃんは,視界の深さによって異なる視界の崖の装置の上に置かれました.
- 赤ちゃんの行動,特に崖への反応が観察され記録されました.
主要な成果:
- 赤ちゃんは,25cm以上の視界の深さで双眼で見る赤ちゃんと同様のパフォーマンスを示しました.
- 9ヶ月未満の乳児は,視界の深さ12.7cmで単眼の弱さを示した.
- この弱さは,覆わぬ目を向ける傾向によって特徴付けられました.
結論:
- 幼児は,より大きな距離での一時的な単眼視力でも,強力な深度知覚能力を発揮します.
- 9ヶ月前には,幼児が視覚の崖の上の単眼視力の欠陥に対してより敏感である重要な発達期が存在します.
- これらの発見は,幼い乳児の微調整された深さの知覚のための双眼視の重要性を強調しています.
関連する概念動画
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01:20Anatomy of the Eyeball
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01:15Depth Perception and Spatial Vision
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01:12Perceptual Constancy
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01:21The Nativist Approach
The nativist approach to infant cognitive development proposes that infants are born with inherent knowledge structures that allow them to interpret the world almost immediately. This perspective contrasts with earlier developmental theories, such as those proposed by Jean Piaget, which emphasized a more gradual acquisition of cognitive abilities through interaction with the environment. One key concept in this approach is object permanence — the understanding that objects continue to exist...