Data preprocessing applied to human average visual evoked potential P100-N140 amplitude, latency, and slope.
Data preprocessing, using principal components and Varimax rotation, was applied to 26 human average visual evoked potential (AVEP) variables representing bilateral amplitudes, latencies, and slopes from the P100 and N140 peaks. Five orthogonal factors, which accounted for about 80% of the variance, were found to describe the data from control subjects, stabilized alcoholics, and chronic nonparanoid schizophrenics. Tests of orthogonality and variance explained were employed to evaluate the results of the analysis.
D000328:Adult; D000437:Alcoholism / Q000503:physiopathology; D000704:Analysis of Variance; D003201:Computers; D005071:Evoked Potentials; D005163:Factor Analysis, Statistical; D006801:Humans; D008297:Male; D010775:Photic Stimulation / Q000379:methods; D012559:Schizophrenia / Q000503:physiopathology; D013223:Statistics as Topic; D014796:Visual Perception / Q000502:physiology*