Extending body space in immersive virtual reality: a very long arm illusion.
Extending body space in immersive virtual reality: a very long arm illusion.
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DOI：
10.1371/journal.pone.0040867
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发表时间：
2012
期刊：
影响因子：
3.7
通讯作者：
Slater M
中科院分区：
文献类型：
--
作者：
Kilteni K;Normand JM;Sanchez-Vives MV;Slater M
最近的研究表明，可以通过对假和相应的真实身体部分的同步多感官刺激将假的身体部分纳入人体的表现中 - 最著名的例子是橡胶手的幻觉。可以通过头部跟踪的立体声符合实际情况的体验，在所有情况下，都有5个条件，在所有条件下，都有5个条件，可以在所有条件下，都有5个条件。在四个一致的条件下，在不一致的情况下，真实的和虚拟的臂之间存在视觉量的一致性。长度要么等于（C1），双（C2），三重（C3）或四倍（C4）实际问卷分数和防御性撤回运动，以响应于两个C1的总体所有权的威胁。我，这些条件没有显着差异，参与者在虚拟手臂上的所有权最多是真实长度的三倍，而在长度上的四倍。在C2 – C4条件下的虚拟臂的长度与虚拟手臂长度呈正相关，但虚拟臂的漂移与所有权之间没有相关性，这表明所有权和整体漂移之间存在不同的基本机制，这些发现扩展并丰富了先前的结果，即多感觉和感觉运动信息可以重建我们对身体形状，大小和对称性的感知，即使这与正常的身体比例不一致。
Recent studies have shown that a fake body part can be incorporated into human body representation through synchronous multisensory stimulation on the fake and corresponding real body part – the most famous example being the Rubber Hand Illusion. However, the extent to which gross asymmetries in the fake body can be assimilated remains unknown. Participants experienced, through a head-tracked stereo head-mounted display a virtual body coincident with their real body. There were 5 conditions in a between-groups experiment, with 10 participants per condition. In all conditions there was visuo-motor congruence between the real and virtual dominant arm. In an Incongruent condition (I), where the virtual arm length was equal to the real length, there was visuo-tactile incongruence. In four Congruent conditions there was visuo-tactile congruence, but the virtual arm lengths were either equal to (C1), double (C2), triple (C3) or quadruple (C4) the real ones. Questionnaire scores and defensive withdrawal movements in response to a threat showed that the overall level of ownership was high in both C1 and I, and there was no significant difference between these conditions. Additionally, participants experienced ownership over the virtual arm up to three times the length of the real one, and less strongly at four times the length. The illusion did decline, however, with the length of the virtual arm. In the C2–C4 conditions although a measure of proprioceptive drift positively correlated with virtual arm length, there was no correlation between the drift and ownership of the virtual arm, suggesting different underlying mechanisms between ownership and drift. Overall, these findings extend and enrich previous results that multisensory and sensorimotor information can reconstruct our perception of the body shape, size and symmetry even when this is not consistent with normal body proportions.
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影响因子：
56.9
作者：
GRAZIANO, MSA;YAP, GS;GROSS, CG
通讯作者：
GROSS, CG
DOI：
10.1080/03610927708827533
发表时间：
1977-01-01
期刊：
COMMUNICATIONS IN STATISTICS PART A-THEORY AND METHODS
影响因子：
--
作者：
HOLLAND, PW;WELSCH, RE
通讯作者：
WELSCH, RE
影响因子：
1.7
作者：
Newport, Roger;Preston, Catherine
通讯作者：
Preston, Catherine
影响因子：
2.5
作者：
Lloyd, Donna M.
通讯作者：
Lloyd, Donna M.
影响因子：
14.5
作者：
LACKNER, JR
通讯作者：
LACKNER, JR