Embodied perception of reachable space: how do we manage threatening objects?
Embodied perception of reachable space: how do we manage threatening objects?
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DOI：
10.1007/s10339-012-0470-z
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发表时间：
2012-08-01
影响因子：
1.7
通讯作者：
Iachini, Tina
中科院分区：
文献类型：
--
作者：
Coello, Yann;Bourgeois, Jeremy;Iachini, Tina
这项研究旨在确定可到达空间的大小是否受到一些日常可操纵物体的危险程度的影响。研究了两种可能性：危险物体影响可达空间的大小，因为其潜在伤害价值的长期语义知识或物体危险属性与身体之间的在线关系。实验范式结合了危险值（危险/不危险）和物体的方向（例如远离/指向感知者）。可达性判断衡量的是个人周围空间的大小，而对物体危险的感知则是通过问卷调查来估计的。结果显示，无论物体的危险程度如何，当危险物体的威胁部分朝向参与者时，而不是远离参与者时，周围空间的范围就会减小。这表明此时身体与物体相互作用的特征对于影响个人周围空间的边界至关重要。
This study aimed at determining whether the size of reachable space is affected by the level of danger of some everyday manipulable objects. Two possibilities are examined: Dangerous objects affect the size of reachable space because of long-term semantic knowledge of their potential hurtful value or the on-line relation between objects' dangerous attributes and the body. The experimental paradigm combined the danger value (dangerous/not dangerous) and the orientation of objects (e.g. pointing away from/towards the perceiver). Reachability judgments measured the size of peripersonal space, and perception of objects' danger was estimated through questionnaires. Results revealed that, whatever the estimated level of objects' danger, the extent of peripersonal space was reduced when the threatening part of dangerous objects was oriented towards participants, not when oriented away. This suggests that the characteristics of the here and now body-objects interaction are crucial in affecting the boundary of peripersonal space.