Relationship between jerky and sinusoidal oscillations in cervical dystonia

Dystonia is often associated with repetitive jerky oscillations (i.e. dystonic tremor), while tremor is characterized by sinusoidal oscillations. We propose two competing predictions for dystonic tremor and sinusoidal tremor relationship. In any given patient, (1) the oscillation could be characterized as either sinusoidal or jerky based on the degree of distortion in the waveforms, (2) the oscillation consists of both sinusoidal and jerky waveforms mixed in a certain proportion that varies among individuals.

Source: Parkinsonism and Related Disorders - July 19, 2019 Category: Neurology Authors: Sinem Balta Beylergil, Aditya P. Singh, David S. Zee, Hyder A. Jinnah, Aasef G. Shaikh Source Type: research