Accelerometry to distinguish psychogenic from essential or parkinsonian tremor.
cross_sectional · Level IV
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Abstract
The authors measured postural wrist tremor with accelerometry in patients with psychogenic (n = 6), essential (n = 11), and parkinsonian (n = 12) tremor. Tremor was measured in one hand, while the other hand either rested or tapped to an auditory stimulus at 3 and 4 or 5 Hz. Psychogenic tremors showed larger tremor frequency changes and higher intraindividual variability while tapping. Accelerometry may differentiate psychogenic from essential and parkinsonian tremor.
Medical subject headings
- Acceleration
- Electrophysiology
- Essential Tremor
- Parkinson Disease
- Psychophysiologic Disorders
- Tremor