Analysis of pattern reversal visual evoked potentials (PRVEPs) by spline wavelets
- 1 January 1997
- journal article
- clinical trial
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Biomedical Engineering
- Vol. 44 (9) , 881-890
- https://doi.org/10.1109/10.623057
Abstract
In this study, the pattern-reversal visual evoked potentials (PRVEP's) collected from normal and demented subjects are investigated by applying the quadratic spline wavelet analysis. The data are decomposed into six octave frequency bands. For quantitative purposes, the wavelet coefficients in the residual waveform representing the delta-theta band activity (0-8 Hz) are explored to characterize the (N70-P100-N130) complex. Specifically, the coefficients corresponding to the location of N70, P100, and N130 peaks are investigated for their sign in order to test whether they represent a consistent (N70-P100-N130) complex in the averaged waveform. Waveforms with normal latency (N70-P100-N130) complex are observed to have positive second, negative third, and positive fourth coefficients in amplitude in their residual scale standing for the delta-theta (0-8 Hz) band activity. The method allows for the analysis of oscillatory-phase behavior of the normal and pathological PRVEP's in their delta-theta band based on a few quantitative measures consistent with the time-frequency occurrence of the major components of the evoked potential.Keywords
This publication has 37 references indexed in Scilit:
- Analyzing pulmonary capillary pressureIEEE Engineering in Medicine and Biology Magazine, 1995
- Ventricular late potentials characterization in time-frequency domain by means of a wavelet transformIEEE Transactions on Biomedical Engineering, 1994
- Estimation of single sweep steady-state visual evoked potentials by adaptive line enhancementIEEE Transactions on Biomedical Engineering, 1994
- Investigating the effects of vasodilator drugs on the turbulent sound caused by femoral artery stenosis using short-term Fourier and wavelet transform methodsIEEE Transactions on Biomedical Engineering, 1994
- Recursive regularization filters: design, properties, and applicationsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1991
- A theory for multiresolution signal decomposition: the wavelet representationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1989
- A parametric method of identification of single-trial event-related potentials in the brainIEEE Transactions on Biomedical Engineering, 1988
- Decomposition of Hardy Functions into Square Integrable Wavelets of Constant ShapeSIAM Journal on Mathematical Analysis, 1984
- Visual evoked response in senile and presenile dementiaElectroencephalography and Clinical Neurophysiology, 1976
- Serial Eeg Studies in Presenile DementiaThe British Journal of Psychiatry, 1968