ABSTRACT
Individuals with severe motor impairments often require alternative means to access computers and communication technology. A range of alternative access devices exist; however, most rely on use of a single access modality. While this approach works for some individuals, it can be limiting for others. This study explored the use of a multi-modal prototype (eye-tracking + switch-scanning) on typing performance with a range of individuals with motor impairments. The multi-modal prototype was compared to eye-tracking alone for this study. Results indicated that the multi-modal prototype had significantly slower typing rate but significantly lower total errors compared to eye-tracking alone. Analysis of individual data revealed four subgroups of clinical relevance including individuals that 1) benefit from multi-modal, 2) benefit from eye-tracking, 3) demonstrate learning and 4) demonstrate fluctuating performance.
Acknowledgements
Our friend and co-author, Dr. David Beukelman, pass away on 2/5/22 prior to the publication of this paper.
Disclosure statement
No potential conflict of interest was reported by the author(s).
Notes
1 Tobii-Dynavox PCEye Mini, Tobii/Dynavox, https://us.tobiidynavox.com/pages/pceye
2 Microsoft® Surface Pro, Microsoft, https://www.microsoft.com/en-us/d/surface-pro.
3 Magic Arm Mount, Enabling Devices, https://enablingdevices.com/product/magic-arm-mounting-system/.
4 Jellybean Switch, AbleNet, Inc., https://www.ablenetinc.com/jelly-bean
5 Swifty USB Switch Interface, Origin Instruments, https://orin.com/access/swifty/
6 SnagIt, TechSmith, https://www.techsmith.com/