Brain-computer interface (BCI) operation: signal and noise during early training sessions.

  title={Brain-computer interface (BCI) operation: signal and noise during early training sessions.},
  author={Dennis J. McFarland and William A. Sarnacki and Theresa M. Vaughan and Jonathan R. Wolpaw},
  journal={Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology},
  volume={116 1},
OBJECTIVE People can learn to control mu (8-12 Hz) or beta (18-25 Hz) rhythm amplitude in the electroencephalogram (EEG) recorded over sensorimotor cortex and use it to move a cursor to a target on a video screen. The recorded signal may also contain electromyogram (EMG) and other non-EEG artifacts. This study examines the presence and characteristics of EMG contamination during new users' initial brain-computer interface (BCI) training sessions, as they first attempt to acquire control over mu… CONTINUE READING
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