Proprioceptive feedback in BCI

A. Ramos, S. Halder, N. Birbaumer

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


Motor imagery based brain computer interface (BCI) technology can be used in motor neurorehabilitation. The use of a BCI as a neuroprosthetic for paralyzed limb assistance implies afferent information flow caused by the feedback. It is an open question whether the proprioceptive feedback causes a bias in the modulation of a motor imagery based BCI control signal. We used a BCI coupled with a robotic orthosis fixed to the subjects hand for flexing or extending the subjects fingers. We studied the proprioceptive feedback neurocorrelates and the performance of 2 subjects by compairing their accuracy using a BCI platform in 2 different tasks; motor imagery task without feedback and motor imagery task with fake, proprioceptive feedback. The proprioceptive feedback increased the performance considerably for both subjects. There is a clear desynchronization potentiation of the mu and beta rhythms while the subjects hand was being moved by the orthosis. These findings could be very relevant for the motor neurorehabilitation field.

Original languageEnglish
Title of host publication2009 4th International IEEE/EMBS Conference on Neural Engineering, NER '09
Number of pages4
Publication statusPublished - 2009
Event2009 4th International IEEE/EMBS Conference on Neural Engineering, NER '09 - Antalya, Turkey
Duration: Apr 29 2009May 2 2009


Other2009 4th International IEEE/EMBS Conference on Neural Engineering, NER '09


  • BCI
  • Neuroprostheses
  • Orthosis
  • Proprioceptive feedback

ASJC Scopus subject areas

  • Biomedical Engineering
  • Clinical Neurology
  • Neuroscience(all)


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