Title :
The space-time characteristics of brain potentials related to single voluntary movements
Author :
Mason, S.G. ; Birch, G.E. ; Tajwar, S. ; Palmer, M.R.
Author_Institution :
Dept. of Electr. Eng., British Columbia Univ., Vancouver, BC, Canada
Abstract :
Transient time-varying voluntary movement-related potentials reside in non-stationary background EEG activity with signal-to-noise ratios typically below -5 dB. This paper presents the preliminary results of evaluation of the statistical space-time characteristics of single-trial EEG. Its findings show that the variance of the EEG is spatially dependent and has spatially consistent features. The EEG during movement and the EEG during no movement can be considered statistically equivalent
Keywords :
bioelectric potentials; electroencephalography; statistical analysis; background EEG activity; brain potentials; single-trial EEG; statistical space-time characteristics; variance; voluntary movement-related potentials; Brain modeling; Communication system control; Electroencephalography; Fingers; Humans; Robustness; Signal processing; Signal to noise ratio; Timing; User interfaces;
Conference_Titel :
Statistical Signal and Array Processing, 1992. Conference Proceedings., IEEE Sixth SP Workshop on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-0508-6
DOI :
10.1109/SSAP.1992.246785
