Neurosurgery and Neurology

Essential Tremor is the most common form of involuntary movement disorder and is often a debilitating condition for those affected. In the most severe cases, long-term suppression is achieved by chronic thalamic stimulation. This stimulation is defined with numerous parameters, and determining the optimal patient-specific settings requires accurate and precise assessment of tremor severity during programming. In our work with the University of Virginia Department of Neurosurgery, we have introduced a technique to provide such assessment of Essential Tremor severity by applying the Teager Energy Function to data collected with a custom, wearable, inertial sensing technology (TEMPO 1.0) for continuous, non-invasive, objective measurement of movement disorder such as tremor. This approach affords an opportunity to analyze tremor at a finer level of granularity than is currently possible with the Clinical Rating Scale. Additionally, our technology facilitates further research of general tremor presentation, treatment, and etiology.