Spatial limits on referred touch to an alien limb may reflect boundaries of visuo-tactile peripersonal space surrounding the hand

被引:350
作者
Lloyd, Donna M. [1 ]
机构
[1] Univ Manchester, Sch Psychol Sci, Manchester M13 9PL, Lancs, England
关键词
rubber hand illusion; vision; touch; peripersonal space; bimodal cells;
D O I
10.1016/j.bandc.2006.09.013
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
In this study, the spatial limits of referred touch to a rubber hand were investigated. Participants rated the strength of the perceived illusion when the rubber hand was placed in one of six different spatial positions (at a distance of 17.5-67.5 cm horizontal from the participant's own hand). The results revealed a significant nonlinear relationship in the strength of the illusion, with the strongest ratings given when the two hands were closest; decaying significantly after a distance of 30 cm. The time taken to elicit the illusion followed a similar trend. These results may reflect the response properties of bimodal visuo-tactile cells encoding peripersonal space around the hand. (C) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码:104 / 109
页数:6
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