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Recursive digital filter for fast visual evoked potential estimation and classification

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2 Author(s)
Palaniappan, R. ; Fac. of Eng., Malaya Univ., Kuala Lumpur, Malaysia ; Raveendran, P.

Generally, visual evoked potential (VEP) estimation requires power spectrum computation. Here VEP is estimated using a recursive digital filter, which is faster and simpler to design. The method assumes VEP can be represented by a 40 Hz spectrum and the filter extracts a 40 Hz signal in the time domain, circumventing the normal procedure of power spectrum computation. Experimental results validate the method for discriminating alcoholics from control subjects

Published in:

Electronics Letters  (Volume:37 ,  Issue: 15 )