両眼競争における視触覚オブジェクト処理:形状の一致、自発的行動、および空間的共定位の役割
Seyoon Song1,2,3, Haeji Shin1,4,5, Chai-Youn Kim1,6,7
1School of Psychology, Korea University, Seoul, Republic of Korea.
Journal of vision
|December 17, 2025
まとめ
触覚形状の一致は、両眼競争中の曖昧さを軽減することにより、視覚的知覚を助ける。このクロスモーダル効果は、触覚が能動的か受動的かに関わらず、空間的共定位によって強化される。
科学分野:
- 認知神経科学、知覚心理学、ヒューマンコンピュータインタラクション
- Cognitive Neuroscience; Perception Psychology; Human-Computer Interaction
背景:
- 両眼競争のような知覚的曖昧さは、多感覚情報を用いて解決することができる。
- 視触覚統合、すなわち視覚入力と触覚入力の組み合わせは、知覚の曖昧さを解消する上で重要な役割を果たす。
- Perceptual ambiguity, like that in binocular rivalry, can be resolved using multisensory information. Visuotactile integration, the combination of visual and tactile input, plays a crucial role in disambiguating perception.
研究 の 目的:
- 両眼競争における知覚的優位性に対する視触覚形状の一致の影響を調査する。
- クロスモーダル統合における自発的行動(能動的触覚 vs 受動的触覚)と空間的共定位の役割を調べる。
- To investigate how visuotactile shape congruence influences perceptual dominance in binocular rivalry. To examine the roles of voluntary action (active vs. passive touch) and spatial colocalization in crossmodal integration.
主な方法:
- 参加者は、3Dプリントされた形状に触れながら、両眼競争(スパイク状/丸い視覚ターゲット)を経験した。
- 実験では、能動的触覚と受動的触覚、および3Dレンダリング画像と実写ビデオを比較して、共定位を操作した。
- Participants experienced binocular rivalry with visual targets (spiky/round) while touching 3D-printed shapes. Experiments compared active touch with passive touch and 3D-rendered images with real-world videos to manipulate colocalization.
主要な成果:
- 触覚形状の一致は、対応する視覚ターゲットの優位性を高めた。この効果は、特にビデオ刺激において、空間的共定位が促進された場合に顕著であった。クロスモーダルの一致による恩恵は、能動的触覚と受動的触覚の両方で同様であった。
- Tactile shape congruence led to increased dominance of the corresponding visual target. This effect was stronger when spatial colocalization was promoted, particularly with video stimuli. Crossmodal congruence benefits were similar for both active and passive touch.
結論:
- 視触覚形状の一致は、競争中の視覚的知覚の曖昧さを効果的に解消する。
- 空間的共定位は、クロスモーダル統合の恩恵を著しく高める。
- これらの発見は、自然なオブジェクト処理と多感覚統合に関する洞察を提供する。
- Visuotactile shape congruence effectively disambiguates visual perception during rivalry. Spatial colocalization significantly enhances crossmodal integration benefits. The findings offer insights into naturalistic object processing and multisensory integration.
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