Journal of Rehabilitation Research & Development (JRRD)

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Method for enhancing text entry rate with single-switch scanning

Heidi Horstmann Koester, PhD; Richard Callaghan Simpson, PhD, ATP

Some individuals with severe physical impairments use single-switch scanning to enter text for spoken and written communication. While singleswitch scanning allows communication using only one controlled input movement, it is a slow method of text entry. We developed a method for adjusting the settings in a single-switch scanning interface to increase a user’s text entry rate. We evaluated that method with nine individuals who use single-switch scanning to communicate. Text entry rates improved an average of 120 percent. All nine subjects increased performance by at least 40 percent, and five of the nine increased by over 100 percent.

Volume 51 Number 6, 2014
   Pages 995 — 1012

View HTML ¦ View PDF ¦ Contents Vol. 51, No.6

This article and any supplementary material should be cited as follows:
Koester HH, Simpson RC. Method for enhancing text entry rate with single-switch scanning. J Rehabil Res Dev. 2014;51(6):995–1012.

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Last Reviewed or Updated  Wednesday, October 15, 2014 10:17 AM

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