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  • Autor
    • Pfurtscheller, Gert
    • Muller-Putz, Gernot R
    • Pfurtscheller, Jorg
    • Rupp, Rudiger
  • TitelEEG-Based Asynchronous BCI Controls Functional Electrical Stimulation in a Tetraplegic Patient
  • Volltext
  • DOI10.1155/ASP.2005.3152
  • Persistent Identifier
  • Erschienen inEURASIP Journal on Advances in Signal Processing
  • Band2005
  • Erscheinungsjahr2005
  • Heft19
  • LicenceCC-BY
  • ISSN1687-6180
  • ZugriffsrechteCC-BY
  • Download Statistik156
  • Peer ReviewNein
  • Abstract:The present study reports on the use of an EEG-based asynchronous (uncued, user-driven) brain-computer interface (BCI) for the control of functional electrical stimulation (FES). By the application of FES, noninvasive restoration of hand grasp function in a tetraplegic patient was achieved. The patient was able to induce bursts of beta oscillations by imagination of foot movement. These beta oscillations were recorded in a one EEG-channel configuration, bandpass filtered and squared. When this beta activity exceeded a predefined threshold, a trigger for the FES was generated. Whenever the trigger was detected, a subsequent switching of a grasp sequence composed of 4 phases occurred. The patient was able to grasp a glass with the paralyzed hand completely on his own without additional help or other technical aids.