A multiple camera tongue switch for a child with severe spastic quadriplegic cerebral palsy

Disability and Rehabilitation. Assistive Technology
Brian Leung, Tom Chau

Abstract

The present study proposed a video-based access technology that facilitated a non-contact tongue protrusion access modality for a 7-year-old boy with severe spastic quadriplegic cerebral palsy (GMFCS level 5). The proposed system featured a centre camera and two peripheral cameras to extend coverage of the frontal face view of this user for longer durations. The child participated in a descriptive case study. The participant underwent 3 months of tongue protrusion training while the multiple camera tongue switch prototype was being prepared. Later, the participant was brought back for five experiment sessions where he worked on a single-switch picture matching activity, using the multiple camera tongue switch prototype in a controlled environment. The multiple camera tongue switch achieved an average sensitivity of 82% and specificity of 80%. In three of the experiment sessions, the peripheral cameras were associated with most of the true positive switch activations. These activations would have been missed by a centre-camera-only setup. The study demonstrated proof-of-concept of a non-contact tongue access modality implemented by a video-based system involving three cameras and colour video processing.

References

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Aug 20, 2005·Developmental Medicine and Child Neurology·Martin BaxUNKNOWN Executive Committee for the Definition of Cerebral Palsy
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Jan 24, 2009·Assistive Technology : the Official Journal of RESNA·Kelly TaiTom Chau

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Citations

Mar 19, 2013·Research in Developmental Disabilities·Giulio E LancioniMario Signorino
Aug 9, 2013·Assistive Technology : the Official Journal of RESNA·Saba MoghimiTom Chau
May 25, 2010·Journal of Neuroengineering and Rehabilitation·Natasha Alves, Tom Chau
Oct 3, 2012·Journal of Intellectual & Developmental Disability·Giulio E LancioniRussell Lang
Feb 11, 2014·Scandinavian Journal of Occupational Therapy·Helene Lidström, Helena Hemmingsson
Dec 30, 2010·Disability and Rehabilitation. Assistive Technology·Natasha Alves, Tom Chau
Apr 20, 2013·Disability and Rehabilitation. Assistive Technology·Giulio E LancioniDoretta Oliva
Jan 23, 2013·Disability and Rehabilitation. Assistive Technology·Leung BrianChau Tom
Feb 25, 2011·Disability and Rehabilitation. Assistive Technology·Melissa LuiTom Chau
Jun 24, 2010·Disability and Rehabilitation. Assistive Technology·Negar MemarianTom Chau
Jul 16, 2010·Medical Engineering & Physics·Natasha AlvesTom Chau
Jun 13, 2015·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Brian Leung, Tom Chau
Aug 7, 2010·Biomedical Engineering Online·Negar MemarianTom Chau
Jun 11, 2014·Research in Developmental Disabilities·Giulio E LancioniSerafino Buono
Sep 27, 2012·Research in Developmental Disabilities·Giulio E LancioniLuigina Carrella
Jun 29, 2021·Disability and Rehabilitation. Assistive Technology·Mohd Rizwan Jafar, D S Nagesh

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