Visual Stimulus Disrupts the Spatial Localization of a Tactile Sensation in Virtual Reality

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PubDate: August 2019

Teams: University of Portsmouth;Tilburg University

Writers: Dion Willis; Wendy Powell; Vaughan Powell; Brett Stevens

PDF: Visual Stimulus Disrupts the Spatial Localization of a Tactile Sensation in Virtual Reality

Abstract

Phantom limb pain is a neuropathic condition in which a person feels pain in a limb that is not present. Cognitive treatments that visually recreate the limb in an attempt to create a cross modal interaction between vision, and touch/proprioception have shown to be effective at alleviating this pain. With improvements in technology, Virtual Mirror Therapy is starting to gain favor, however, there are currently no applications that utilize passive touch in the same way non-virtual reality applications do. This paper investigates whether a visual stimulus can relocate a tactile stimulus to a different location using principles from the rubber hand illusion and mirror therapy. We demonstrate that a displaced visual stimulus in virtual reality can disrupt accurate spatial perception of a physical vibrotactile sensation however the effects are small and require further investigation.

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