人体の視覚処理に特化した皮質領域です.
P E Downing1, Y Jiang, M Shuman
1School of Psychology, Centre for Cognitive Neuroscience, University of Wales, Bangor LL57 2AS, UK. p.downing@bangor.ac.uk
まとめ
研究者らは,人間の体画像を視覚的に処理する,側頭後頭側頭皮質にある特定の脳領域を発見しました. この発見は,顔認識領域とは異なる,身体認識のための特殊な神経系を示唆しています.
科学分野:
- 神経科学は神経科学である.
- 認知心理学とは,認知心理学である.
- 視覚的知覚 視覚的知覚
背景:
- 視覚皮質は顔の選択領域を知っていますが,身体の知覚のための神経基盤は理解されていないままです.
- 以前の研究は,主に人間の脳における顔の表現に焦点を当てていた.
研究 の 目的:
- 人体の視覚的知覚に特化した独特の皮質領域の存在と位置を調査する.
- 体のイメージに対する神経応答を,様々な制御刺激と比較する.
主な方法:
- 機能性磁気共鳴画像 (fMRI) 研究は,ヒトの被験者に実施されました.
- 参加者は,一連の制御視覚刺激とともに,人体の画像を見ました.
主要な成果:
- lateral occipitotemporal cortexの独特な皮質領域は,すべての被験者における人体画像に対する選択的な反応を示した.
- この領域の活性化は,対照刺激と比較して,身体画像において有意に大きかった.
結論:
- この発見は,人間の脳内にある,身体の視覚的知覚に専念する特殊な神経系について,実質的な証拠を提供している.
- 側頭側頭側頭皮質のこの特定された領域は,体の外見を処理する重要な領域を表しています.
関連する概念動画
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