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J Clin Mov Disord
April 2020
1Centre for Human Drug Research, Zernikedreef 8, Leiden, 2333 CL The Netherlands.
Background: To quantify pharmacological effects on tremor in patients with essential tremor (ET) or Parkinson's Disease (PD), laboratory-grade accelerometers have previously been used. Over the last years, consumer products such as smartphones and smartwatches have been increasingly applied to measure tremor in an easy way. However, it is unknown how the technical performance of these consumer product accelerometers (CPAs) compares to laboratory-grade accelerometers (LGA).
View Article and Find Full Text PDFKaohsiung J Med Sci
March 2006
Department of Neurology, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung Medical University, Taiwan.
A 24-year-old male suffered from acute-onset right-sided hemiparesis, dysarthria, and ophthalmoplegia in February 2001. Brain magnetic resonance imaging revealed a cavernous angioma with hemorrhage over the left thalamus. Moreover, some rhythmic, coarse, low-frequency (2-3 Hz) oscillation over the right wrist and elbow was noted 1 month later.
View Article and Find Full Text PDFAm J Psychiatry
September 1976
The authors used tremography to record the bilateral digital tremor of a patient showing extrapyramidal system effects in response to withdrawal from phenothiazines. They found that changes in the amplitude of tremor correlated with clinical ratings of extrapyramidal disturbance. Changes in the amplitude and in the spectrum of tremor were similar to the bipolar paradoxical changes seen during intoxication with an anticholinergic psychotogen.
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