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A Comprehensive Assessment of Altered Embodiment in Individuals With Spinal Cord Injury
Sponsor: Swiss Paraplegic Research, Nottwil
Summary
Spinal cord injury (SCI) occurs when trauma or other factors damage the spinal cord, disrupting the flow of sensory information from the body to the brain. This interruption can interfere with embodiment-the body awareness and physical sensations processed by the brain-sometimes leading to a phenomenon called disembodiment. For people with SCI, disembodiment may appear as unusual body sensations, like feeling that a limb is in a different position than it actually is. Such changes in body awareness can impact daily life, mental health, and rehabilitation outcomes. Despite its importance, the study of embodiment in SCI remains limited. This project aims to explore how SCI alters embodiment, focusing on its specific characteristics, the effects on daily life, and the underlying brain activity as measured by functional magnetic resonance imaging (fMRI). Both people with and without SCI will participate. Procedure: Participants will complete a single examination lasting 2 to 2.5 hours, including approximately 55 minutes in the MRI scanner (with preparation and follow-up).
Key Details
Gender
All
Age Range
18 Years - 65 Years
Study Type
OBSERVATIONAL
Enrollment
80
Start Date
2025-06-04
Completion Date
2026-05
Last Updated
2025-10-08
Healthy Volunteers
Yes
Conditions
Interventions
Behavioral assessment
A comprehensive behavioral assessment of embodiment and its effect on daily living, taking into account pain, interoception, emotions and anxiety, sleep quality, life satsfaction and cognition.
Functional Magnetic Resonance Imaging (fMRI)
Neural mechanisms of embodiments will be explored with MRI sequences including structural MRI, resting-state and task-based fMRI of the head. The task will be a modified version of the rubber hand illusion, previously used to asess embodiment. Participants will be required to lay in the MRI with their legs bended upright and a screen placed at the level of their hips, which will show a pair of legs. The participant's leg will be stroked with a paintbrush while the image on the screen will be showing the virtual legs being stroked. Participants will be required to report how strongly they perceive the virtual legs as their own, as a measure of embodiment.
Locations (1)
Swiss Paraplegic Research
Nottwil, Canton of Lucerne, Switzerland