Title :
Real-time filtering for the estimation of steady-state visual evoked brain potentials
Author :
Collura, Thomas F.
Author_Institution :
Cleveland Clinic Found., OH, USA
fDate :
6/1/1990 12:00:00 AM
Abstract :
It is shown that EEG visual evoked potentials elicited by repetitive stimuli in the range of 2 to 20 per second can be readily estimated in real time using a simple filtering approach. This measurement takes advantage of the fact that a comb filter will pass the important Fourier harmonics of the signal to provide an estimate of the evoked activity and track time variations in the signal. Results on human subjects demonstrate the effectiveness of the approach.
Keywords :
bioelectric potentials; brain; signal processing; vision; EEG visual evoked potentials; Fourier harmonics; brain potentials; comb filter; human subjects; real-time filtering; repetitive stimuli; time variations; Electron microscopy; Filtering; Image analysis; Image segmentation; In vitro; Joining processes; Signal resolution; Smoothing methods; Steady-state; Toxicology; Electroencephalography; Evoked Potentials, Visual; Fourier Analysis; Humans; Reference Values; Signal Processing, Computer-Assisted;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
