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Mapping Human Proprioceptive Projections of Upper Limb Muscles Through Spinal Cord fMRI
22 Oct 2025
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#neuroimaging
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I am delighted to share our work published in Human Brain Mapping:
Mapping Human Proprioceptive Projections of Upper Limb Muscles Through Spinal Cord fMRI
Human Brain Mapping, Vol. 46, No. 15, e70386 (October 2025)
Raphaëlle Schlienger, Caroline Landelle, Sergio Daniel Hernandez-Charpak, Daniela Maria Pinzon-Corredor, Jeanne Caron-Guyon, Julien Sein, Bruno Nazarian, Jocelyne Bloch, Olivier Felician, Jean-Luc Anton, Grégoire Courtine, Anne Kavounoudias
In this study, I contributed to the translation of the spinal BOLD fMRI framework into the context of upper limb muscle tendon vibration combined with cervical spinal cord fMRI. By leveraging muscle tendon vibration to selectively engage proprioceptive pathways, this work demonstrates that spinal cord fMRI can noninvasively identify upper-limb myotomes within the cervical spinal cord — extending the approach we had previously developed for the lumbosacral region to a new spinal territory and a new sensory modality. These findings open new possibilities both for studying the functional organization of the spinal cord and for clinical applications in individuals with cervical injuries.
Sergio Daniel Hernandez Charpak is a PhD Computational Scientist, a Physicist and Computing Engineer researching in the interface between AI / medical imaging in healthcare, and also an enthousiast of travel, hiking, chess and piano.