Tremor is classified into physiological, essential, and parkinsonian tremor by means of clinical criteria. The aim of our work was to extract quantitative features from the measurements of the acceleration of human postural hand tremor. Different mathematical methods were adopted and modified in ord
Analyzing the dynamics of hand tremor time series
β Scribed by C. Gantert; J. Honerkamp; J. Timmer
- Publisher
- Springer-Verlag
- Year
- 1992
- Tongue
- English
- Weight
- 500 KB
- Volume
- 66
- Category
- Article
- ISSN
- 0340-1200
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β¦ Synopsis
We investigate physiological, essential and parkinsonian hand tremor measured by the acceleration of the streched 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.
π SIMILAR VOLUMES
In this paper we have used the Wavelet Transform (WT) and the Detrended Fluctuation Analysis (DFA) methods to analyze hand tremor movements in essential tremor (ET), in two different recording conditions (before and after the addition of wrist-cuff load). We have analyzed the time series comprised o
between death by accident or illness and death by natural causes, za = 14.26, p = .01. The age of death for all causes for females was 59 years, for males 61.5, both figures less than actuarial life expectancies. The results of this study do not reflect the cultural concerns or health statistics w