Automatic detection of tic activity in the Tourette Syndrome

Michel Bernabei, Giuseppe Andreoni, Martin O. Mendez Garcia, Luca Piccini, Federico Aletti, Marco Sassi, Domenico Servello, Mauro Porta, Ezio Preatoni

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study presents a simple decision-support system for the detection of tic events during the Tourette Syndrome (TS). The system is based on a triaxial accelerometer placed on the patient's trunk. TS is a neurological disorder that emerges during childhood and that is characterized by a large spectrum of involuntary/compulsive movements and sounds. 12 subjects with chronic TS participated in the study and the tic events were both measured by the proposed device and visually classified through video recording. 3D-acceleration timeseries were combined through a module operator and their noise was eliminated by a median filter. Signal to noise ratio was improved by a nonlinear energy operator. Finally, a timevariant threshold was used to detect tic events. The automatic tic recognition showed a performance around 80 % in terms of sensitivity, specificity and accuracy. In conclusion, this simple, automatic and unobtrusive method offers an alternative approach to quantitatively assess the tic events in clinical and non clinical environments. This overcomes the limitations of the current motor tic evaluation which is done by clinical observation and/or video-inspection in specialized neurological centres.

Original languageEnglish
Title of host publication2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
Pages422-425
Number of pages4
DOIs
Publication statusPublished - 2010
Event2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10 - Buenos Aires, Argentina
Duration: Aug 31 2010Sep 4 2010

Other

Other2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
CountryArgentina
CityBuenos Aires
Period8/31/109/4/10

Keywords

  • Accelerometers
  • Automatic motor tic detection
  • Automatic screening
  • Decision support system
  • Tourette syndrome

ASJC Scopus subject areas

  • Biomedical Engineering

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  • Cite this

    Bernabei, M., Andreoni, G., Mendez Garcia, M. O., Piccini, L., Aletti, F., Sassi, M., Servello, D., Porta, M., & Preatoni, E. (2010). Automatic detection of tic activity in the Tourette Syndrome. In 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10 (pp. 422-425). [5627374] https://doi.org/10.1109/IEMBS.2010.5627374