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  • Title: Real-time filtering for the estimation of steady-state visual evoked brain potentials.
    Author: Collura TF.
    Journal: IEEE Trans Biomed Eng; 1990 Jun; 37(6):650-2. PubMed ID: 2354847.
    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, plus track time-variations in the signal. Results on human subjects demonstrate the effectiveness of the approach.
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