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Updated: Feb 10, 2026

Author Spotlight: Insights into Remotely Supervised Neuromodulation Procedure for Phantom Limb Pain
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Decoding phantom limb movements from intraneural recordings.

Cecilia Rossi1, Marko Bumbasirevic2, Paul Čvančara3

  • 1Institute of Neuroinformatics, University of Zurich and ETH Zurich, Zurich, Switzerland.

Nature Communications
|February 8, 2026
PubMed
Summary
This summary is machine-generated.

Intraneural electrodes in the sciatic nerve enabled prosthetic control by decoding phantom limb movements in amputees. This approach shows promise for advanced, bidirectional neural prosthetics.

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Area of Science:

  • Neuroscience
  • Biomedical Engineering
  • Prosthetics

Background:

  • Limb loss results in sensorimotor deficits, often requiring prosthetic devices.
  • Direct neural recording for prosthetic control faces challenges like low signal amplitude and nerve interfacing difficulties.

Purpose of the Study:

  • To investigate intraneural multichannel electrodes for accessing motor signals in transfemoral amputees.
  • To decode volitional phantom limb movements for advanced prosthetic control.

Main Methods:

  • Implantation of transversal intrafascicular multichannel electrodes in distal sciatic nerve branches of two transfemoral amputees.
  • Recording multiunit activity associated with phantom knee, ankle, and toe movements.
  • Utilizing a Spiking Neural Network (SNN)-based decoder for movement prediction.

Main Results:

  • Identified joint- and direction-specific neural activity corresponding to phantom limb movements.
  • SNN decoder outperformed conventional methods in predicting attempted movements.
  • Integration of intraneural and intermuscular signals further improved decoding accuracy.

Conclusions:

  • Intraneural recordings from the sciatic nerve can decode phantom limb movements.
  • This technology supports the development of bidirectional, neurally-controlled prosthetic systems.
  • Early segregation of motor and sensory maps within the nerve was observed.