Body machine interface: Remapping motor skills after spinal cord injury

M. Casadio*, A. Pressman, S. Acosta, Z. Danzinger, A. Fishbach, Ferdinando Mussa-Ivaldi, K. Muir, H. Tseng, David Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

20 Scopus citations

Abstract

The goal of a body-machine interface (BMI) is to map the residual motor skills of the users into efficient patterns of control. The interface is subject to two processes of learning: while users practice controlling the assistive device, the interface modifies itself based on the user's residual abilities and preferences. In this study, we combined virtual reality and movement capture technologies to investigate the reorganization of movements that occurs when individuals with spinal cord injury (SCI) are allowed to use a broad spectrum of body motions to perform different tasks. Subjects, over multiple sessions, used their upper body movements to engage in exercises that required different operational functions such as controlling a keyboard for playing a videogame, driving a simulated wheelchair in a virtual reality (VR) environment, and piloting a cursor on a screen for reaching targets. In particular, we investigated the possibility of reducing the dimensionality of the control signals by finding repeatable and stable correlations of movement signals, established both by the presence of biomechanical constraints and by learned patterns of coordination. The outcomes of these investigations will provide guidance for further studies of efficient remapping of motor coordination for the control of assistive devices and are a basis for a new training paradigm in which the burden of learning is significantly removed from the impaired subjects and shifted to the devices.

Original languageEnglish (US)
Title of host publication2011 IEEE International Conference on Rehabilitation Robotics, ICORR 2011 - Rehab Week Zurich 2011
DOIs
StatePublished - Nov 2 2011
EventRehab Week Zurich 2011 - 2011 IEEE International Conference on Rehabilitation Robotics, ICORR 2011 - Zurich, Switzerland
Duration: Jun 27 2011Jul 1 2011

Publication series

NameIEEE International Conference on Rehabilitation Robotics
ISSN (Print)1945-7898
ISSN (Electronic)1945-7901

Other

OtherRehab Week Zurich 2011 - 2011 IEEE International Conference on Rehabilitation Robotics, ICORR 2011
CountrySwitzerland
CityZurich
Period6/27/117/1/11

Keywords

  • Learning
  • Movement reorganization
  • Spinal cord Injury
  • Wheelchair
  • body machine interface

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Rehabilitation
  • Electrical and Electronic Engineering

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  • Cite this

    Casadio, M., Pressman, A., Acosta, S., Danzinger, Z., Fishbach, A., Mussa-Ivaldi, F., Muir, K., Tseng, H., & Chen, D. (2011). Body machine interface: Remapping motor skills after spinal cord injury. In 2011 IEEE International Conference on Rehabilitation Robotics, ICORR 2011 - Rehab Week Zurich 2011 [5975384] (IEEE International Conference on Rehabilitation Robotics). https://doi.org/10.1109/ICORR.2011.5975384