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Analyzing the dynamics of hand tremor time series
C Gantert1, J Honerkamp, J Timmer
1Fakultät für Physik, Albert-Ludwigs-Universität, Freiburg, Federal Republic of Germany.
Biological Cybernetics
|January 1, 1992
Abstract:
We investigate physiological, essential and parkinsonian hand tremor measured by the acceleration of the stretched hand. Methods from the theory of dynamical systems and from stochastics are used. It turns out that the physiological tremor can be described as a linear stochastic process, and that the parkinsonian tremor is nonlinear and deterministic, even chaotic. The essential tremor adopts a middle position, it is nonlinear and stochastic.