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

    Research output: Contribution to journalArticlepeer-review

    Abstract

    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. © 2006 Elsevier Inc. All rights reserved.
    Original languageEnglish
    Pages (from-to)104-109
    Number of pages5
    JournalBrain and Cognition
    Volume64
    Issue number1
    DOIs
    Publication statusPublished - Jun 2007

    Keywords

    • Bimodal cells
    • Peripersonal space
    • Rubber hand illusion
    • Touch
    • Vision

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