title: The spatial distance rule in the moving and classical rubber hand illusions.
abstract: The rubber hand illusion (RHI) is a perceptual illusion in which participants perceive a model hand as part of their own body. Here, through the use of one questionnaire experiment and two proprioceptive drift experiments, we investigated the effect of distance (12, 27.5, and 43cm) in the vertical plane on both the moving and classical RHI. In both versions of the illusion, we found an effect of distance on ownership of the rubber hand for both measures tested. Our results further suggested that the moving RHI might follow a narrower spatial rule. Finally, whereas ownership of the moving rubber hand was affected by distance, this was not the case for agency, which was present at all distances tested. In sum, the present results generalize the spatial distance rule in terms of ownership to the vertical plane of space and demonstrate that also the moving RHI obeys this rule.
authors.affiliation: Brain, Body & Self Laboratory, Department of Neuroscience, Karolinska Institutet, Retzius väg 8, SE-171 77 Stockholm, Sweden. Electronic address: andreas.kalckert@gmail.com.
authors.forename: Andreas
authors.initials: A
authors.lastname: Kalckert
authors.affiliation: Brain, Body & Self Laboratory, Department of Neuroscience, Karolinska Institutet, Retzius väg 8, SE-171 77 Stockholm, Sweden.
authors.forename: H Henrik
authors.initials: HH
authors.lastname: Ehrsson
mesh_terms: D000293:Adolescent; D000328:Adult; D001828:Body Image; D005260:Female; D006225:Hand; D006801:Humans; D007088:Illusions / Q000502:physiology*; D008297:Male; D009039:Motion Perception / Q000502:physiology*; D011434:Proprioception / Q000502:physiology*; D013028:Space Perception / Q000502:physiology*; D055815:Young Adult
keywords: Agency; Body perception; Motor control; Multisensory integration; Ownership; Rubber hand illusion; Self-recognition