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Clinical evaluation of wireless inductive tongue computer interface for control of computers and assistive devices

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Author

  • Eugen R. Lontis
  • Morten E. Lund
  • Henrik Vie Christensen
  • Bo Bentsen
  • Michael Gaihede
  • Héctor Caltenco
  • Lotte N.S. Andreasen Struijk

Summary, in English

Typing performance of a full alphabet keyboard and a joystick type of mouse (with on-screen keyboard) provided by a wireless integrated tongue control system (TCS) has been investigated. The speed and accuracy have been measured in a form of a throughput defining the true correct words per minute [cwpm]. Training character sequences were typed in a dedicated interface that provided visual feedback of activated sensors, a map of the alphabet associated, and the task character. Testing sentences were typed in Word, with limited visual feedback, using non-predictive typing (map of characters in alphabetic order associated to sensors) and predictive typing (LetterWise) for TCS keyboard, and non-predictive typing for TCS mouse. Two subjects participated for four and three consecutive days, respectively, two sessions per day. Maximal throughput of 2.94, 2.46, and 2.06, 1.68 [cwpm] were obtained with TCS keyboard by subject 1 and 2 with predictive and non-predictive typing respectively. Maximal throughput of 2.09 and 1.71 [cwpm] was obtained with TCS mouse by subject 1 and 2, respectively. Same experimental protocol has been planned for a larger number of subjects.

Publishing year

2010

Language

English

Pages

3365-3368

Publication/Series

Annual International Conference of the IEEE Engineering in Medicine and Biology Society

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Human Computer Interaction

Conference name

Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2010

Conference date

2010-08-31 - 2010-09-04

Conference place

Buenos Aires, Argentina

Status

Published

ISBN/ISSN/Other

  • ISSN: 1557-170X
  • ISBN: 978-1-4244-4123-5