Touching Sharp Virtual Objects Produces a Haptic Illusion
Identifieur interne : 004A99 ( Istex/Curation ); précédent : 004A98; suivant : 004B00Touching Sharp Virtual Objects Produces a Haptic Illusion
Auteurs : Andrea Brogni [Italie, Espagne] ; G. Caldwell [Italie] ; Mel Slater [Espagne, Royaume-Uni, États-Unis]Source :
- Lecture Notes in Computer Science [ 0302-9743 ] ; 2011.
Abstract
Abstract: Top down perceptual processing implies that much of what we perceive is based on prior knowledge and expectation. It has been argued that such processing is why Virtual Reality works at all - the brain filling in missing information based on expectation. We investigated this with respect to touch. Seventeen participants were asked to touch different objects seen in a Virtual Reality system. Although no haptic feedback was provided, questionnaire results show that sharpness was experienced when touching a virtual cone and scissors, but not when touching a virtual sphere. Skin conductance responses separate out the sphere as different to the remaining objects. Such exploitation of expectation-based illusory sensory feedback could be useful in the design of plausible virtual environments.
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DOI: 10.1007/978-3-642-22021-0_26
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