無意識の失明対無意識の記憶喪失は,固定されながらも無視された言葉に対するものです
1Wellcome Department of Cognitive Neurology, Institute of Neurology, University College London, 12 Queen Square, London WC1N 3BG, UK. geraint@klab.caltech.edu
まとめ
真の不注意性失明は,注意が完全に集中しているときに起こり,見守らぬ言葉の知覚を妨げます. 脳活動では,単語とランダムな文字の区別がなく,無視された視覚情報を認識する完全な失敗を示しています.
科学分野:
- 認知神経科学とは
- 視覚的知覚 視覚的知覚
背景:
- 個人はしばしば無視された情報を思い出すことができません.
- これは注意欠陥による失明 (知覚障害) か,注意欠陥による記憶喪失 (迅速な忘却) によるものなのかは不明である.
研究 の 目的:
- 無意識の失明と無意識の記憶喪失の神経基礎を調査する.
- 注意が分かれるとき,見守らぬ,直接固定された単語が認識されているかどうかを判断するために.
主な方法:
- 機能画像検査 (fMRI) を用いて脳の活動を測定した.
- 参加者は,注意が他のことに集中している間に,見守らぬ単語を見ました.
主要な成果:
- 注意が完全に集中していたとき,脳は,意味のある単語とランダムな文字との比較では,差異的な活動を示さなかった.
- この差別の欠如は,視聴者が直接固定した刺激でも発生しました.
結論:
- この発見は,言葉に対する本当の注意欠陥による盲目さを示しています.
- 視覚認識は,視線の中心にある馴染みのある刺激に対してさえも,注意の集中に極めて依存しています.
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