Research paperQuantification of tremor with a digitizing tablet
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Validation of tremor measurements using quantified drawing analysis in patients with essential tremor or Parkinson's disease treated with MR-guided focused ultrasound thalamotomy
2024, Biomedical Signal Processing and ControlEssential tremor quantification based on the combined use of a smartphone and a smartwatch: The NetMD study
2018, Journal of Neuroscience MethodsCitation Excerpt :In addition to utility, reliability, validity, and accessibility, wearability and ecology are required features of any new device intended to monitor tremor in controlled and free-living conditions (Del Din et al., 2016). Different transducers have been used for the quantification of tremor (Elble and McNames, 2016; Haubenberger et al., 2016), such as electromyography (Carboncini et al., 2001), drawing of samples and handwriting by digitizing tablets (Elble et al., 1990), actigraphy with accelerometers (van Someren et al., 1998) or gyroscopes (Gallego et al., 2010), and even by means of laser transduction of velocity and electromagnetic tracking (O’Suilleabhain and Dewey, 2001) or optical devices (Chen et al., 2016). However, most of these methods or systems are time-consuming or impractical to be used in daily life.
New insight in spiral drawing analysis methods – Application to action tremor quantification
2017, Clinical NeurophysiologyCitation Excerpt :The Bain rating scale was validated by Kraus and Hoffmann, (2010), except for a few examples of spirals. Digitising tablets have been increasingly used to automate the quantification of hand drawn spirals and writing capabilities (Lacquaniti et al. 1987; Elble et al. 1990; Marquardt and Mai 1994; Elble et al. 1996; Pullman 1998; Mergl et al. 1999; Erasmus et al., 2001; Liu et al. 2005; Ondo et al. 2005; Wang et al. 2005; Feys et al. 2007; Zeuner et al. 2007; Hsu et al. 2009; Viviani et al., 2009; Schneider et al. 2010; Bajaj et al., 2011; Haubenberger et al. 2011; Louis et al. 2012; Michalec et al., 2014; Hess et al. 2014; Sisti et al. 2017). In these studies, several parameters were used to characterize the tremor.
Feasibility of spirography features for objective assessment of motor function in Parkinson's disease
2017, Artificial Intelligence in MedicineCitation Excerpt :The digitalised spirography is a quantitative method for detection and evaluation of different types of tremors and other movement disorders. The spirographic system is usually composed of a computer with a specialised software, a graphic tablet or a touch-screen measurement device (e.g. a smartphone), and a stylus [14,4]. The patient is required to draw a spiral (or sometimes several spirals).
Task-dependent variability of Essential Tremor
2017, Parkinsonism and Related DisordersUpper limb intention tremor assessment: opportunities and challenges in wearable technology
2024, Journal of NeuroEngineering and Rehabilitation