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The robot hand illusion: inducing proprioceptive drift through visuo-motor congruency.
Journal article

The robot hand illusion: inducing proprioceptive drift through visuo-motor congruency.

  • Romano D Department of Psychology, University of Milan-Bicocca, piazza dell׳Ateneo Nuovo 1, 20126 Milano, Italy.
  • Caffa E Department of Psychology, University of Milan-Bicocca, piazza dell׳Ateneo Nuovo 1, 20126 Milano, Italy.
  • Hernandez-Arieta A Artificial Intelligence Laboratory, Department of Informatics, University of Zurich, Switzerland.
  • Brugger P Department of Neurology, University Hospital Zurich, Switzerland.
  • Maravita A Department of Psychology, University of Milan-Bicocca, piazza dell׳Ateneo Nuovo 1, 20126 Milano, Italy. Electronic address: angelo.maravita@unimib.it.
  • 2014-12-03
Published in:
  • Neuropsychologia. - 2015
Body representation
Embodiment
Ownership
Peripersonal space
Rubber hand illusion
Adult
Body Image
Female
Hand
Humans
Illusions
Male
Proprioception
Psychomotor Performance
Rubber
Touch
Touch Perception
Visual Perception
Young Adult
English The representation of one's own body sets the border of the self, but also shapes the space where we interact with external objects. Under particular conditions, such as in the rubber hand illusion external objects can be incorporated in one's own body representation, following congruent visuo-tactile stroking of one's own and a fake hand. This procedure induces an illusory sense of ownership for the fake hand and a shift of proprioceptive localization of the own hand towards the fake hand. Here we investigated whether pure visuo-motor, instead of visuo-tactile, congruency between one's own hand and a detached myoelectric-controlled robotic hand can induce similar embodiment effects. We found a shift of proprioceptive hand localization toward the robot hand, only following synchronized real hand/robot hand movements. Notably, no modulation was found of the sense of ownership following either synchronous or asynchronous-movement training. Our findings suggest that visuo-motor synchrony can drive the localization of one's own body parts in space, even when somatosensory input is kept constant and the experience of body ownership is maintained.
Language
  • English
Open access status
closed
Identifiers
Persistent URL
https://sonar.ch/global/documents/251817
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