Geometrical principal component analysis of planar-segments of the three-channel Lissajous&apos; trajectory of human auditory brain stem evoked potentials

Pratt, H.; Har'el, Z.; Golos, E.; Pratt, H; Har&apo; el, Z; Golos, E

doi:10.1016/0020-7101(86)90020-6

Home

>

Section

>

Chapter

Geometrical principal component analysis of planar-segments of the three-channel Lissajous' trajectory of human auditory brain stem evoked potentials

Pratt, H.; Har'el, Z.; Golos, E.

International Journal of Bio-Medical Computing 18(3-4): 239-248

1986

ISSN/ISBN: 0020-7101

PMID: 3721605

DOI: 10.1016/0020-7101(86)90020-6
Accession: 040211691

Full-Text Article emailed within 0-6 h

Payments are secure & encrypted

Summary

Three-Channel Lissajous' Trajectories (3CLTs) of Auditory Brain Stem Evoked Potentials (ABEP) were obtained from 15 normal humans. Planar-segments of 3CLT were identified and the orientations of the first two geometrical principal components, which interact to produce the planar-segments, were calculated. Each principal component's orientation in voltage space was quantified by its coefficients (A, B and C). Intersubject variability of these orientations was comparable to the variability of plane orientations. The principal components of planar-segments can indicate the type of generator activity that is involved in the formation of planar-segments. The results of this analysis indicate that planarity of each 3CLT component is produced by the interaction of simultaneous multiple generators, or by a single synchronous generator which changes its orientation. The coefficients of these principal components may complement plane coefficients as quantitative indices of 3CLT of ABEP.