Accession Number N20120015948
Title Sparse Matrix Approach for Simultaneous Quantification of Nystagmus and Saccade.
Publication Date Jun 2012
Media Count 4p
Personal Author L. Stone R. D. Boyle S. L. Kukreja
Abstract The vestibulo-ocular reflex (VOR) consists of two intermingled non-linear subsystems; namely, nystagmus and saccade. Typically, nystagmus is analysed using a single sufficiently long signal or a concatenation of them. Saccade information is not analysed and discarded due to insufficient data length to provide consistent and minimum variance estimates. This paper presents a novel sparse matrix approach to system identification of the VOR. It allows for the simultaneous estimation of both nystagmus and saccade signals. We show via simulation of the VOR that our technique provides consistent and unbiased estimates in the presence of output additive noise.
Keywords Aerospace medicine
Bifurcation(Biology)
Mathematical models
Nonlinearity
Reflexes
Saccadic eye movements
Simulation
Steady state
Vestibular nystagmus

 
Source Agency National Aeronautics and Space Administration
NTIS Subject Category 84 - Space Technology
57E - Clinical Medicine
Corporate Author National Aeronautics and Space Administration, Edwards, CA. Hugh L. Dryden Flight Research Center.
Document Type Conference proceedings
Title Note N/A
NTIS Issue Number 1314
Contract Number N/A

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