Title :
Analysis of nystagmus induced by pseudorandom rotations
Author :
Peterka, Robert J.
Author_Institution :
Good Samaritan Hospital & Med. Center, Portland, OR, USA
Abstract :
A method is described for the analysis of nystagmus evoked by a pseudorandom rotational stimulus composed of a summation of sinusoidal components. This method allows for the rapid identification of the dynamic response properties of vestibulo-ocular and visual-vestibulo-ocular reflexes over a wide bandwidth. The results of applying the technique to VOR eye movements evoked by rotation about a vertical axis in the dark are shown and discussed, as well as VVOR, VOR, and OKR (optokinetic reflex) gain and phase data derived from responses to pseudorandom rotation
Keywords :
biological techniques and instruments; biomechanics; eye; dynamic response properties; eye movements; nystagmus analysis method; pseudorandom rotations; sinusoidal component summation; vestibulo-ocular reflex; visual-vestibulo-ocular reflex; Bandwidth; Biomedical imaging; Discrete Fourier transforms; Extraterrestrial measurements; Filters; Hospitals; Phase detection; Rotation measurement; Sampling methods; Smoothing methods;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.95716
