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Updated: Jun 21, 2026

MPI CyberMotion Simulator: Implementation of a Novel Motion Simulator to Investigate Multisensory Path Integration in Three Dimensions
Published on: May 10, 2012
Apparent visual motion of the observer's own limbs
Vebjørn Ekroll1, Tom R Scherzer
1Institut für Psychologie, Universität Kiel, Olshausenstrasse 62, 24118 Kiel, Germany. vekroll@psychologie.uni-kiel.de
Experiencing illusory apparent motion in body parts, despite conflicting sensory input, reveals how the brain processes visual and proprioceptive signals. These senses appear to remain separate rather than merging into one perception.
Area of Science:
- Neuroscience
- Cognitive Science
- Sensory Perception
Background:
- The brain integrates multisensory information for a cohesive perception of the world.
- Proprioception (body position sense) and vision are crucial for body awareness and movement control.
Purpose of the Study:
- To investigate the crossmodal integration of visual and proprioceptive signals.
- To understand how the brain handles conflicting sensory information during illusory apparent motion.
Main Methods:
- Inducing illusory apparent motion in participants' own body parts.
- Observing subjective experiences despite conflicting visual and proprioceptive cues.
Main Results:
- Illusory apparent motion was readily experienced, even with conflicting proprioceptive feedback.
- Visual and proprioceptive signals did not appear to merge into a unified percept.
- Simultaneous experience of contradictory visual and bodily sensations was reported.
Conclusions:
- The brain may maintain separate processing streams for visual and proprioceptive information, even when they conflict.
- This suggests a distinct mechanism for handling multisensory integration rather than a simple merging of signals.
- The findings offer insights into the neural basis of body ownership and sensory conflict resolution.
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