OnScreenDualScribe: a computer operation tool for users with a neuromuscular disease

Authors:
Torsten Felzer;I. Scott MacKenzie;Stephan Rinderknecht
Affiliations:
Institute for Mechatronic Systems, Technische Universität Darmstadt, Darmstadt, Germany;Department of Computer Science and Engineering, York University, Toronto, Canada;Institute for Mechatronic Systems, Technische Universität Darmstadt, Darmstadt, Germany
Venue:
UAHCI'13 Proceedings of the 7th international conference on Universal Access in Human-Computer Interaction: design methods, tools, and interaction techniques for eInclusion - Volume Part I
Year:
2013

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Abstract

We developed a tool based on a modified number pad aimed at empowering persons with neuromuscular diseases to efficiently operate a computer and enter text. As the keypad lies securely in both hands, the system is ideal for someone who has motor problems using a full-size keyboard but cannot use speech recognition as an alternative method, because of dysarthria. The software offers various assistive techniques; for example, text entry is facilitated with the help of word prediction. An ambiguous mode with word-level disambiguation allows text entry with six keys. Initial empirical results with the system --- which is already in regular use --- indicate that it indeed represents a viable alternative, since it decreases effort without increasing the time to operate a computer.