Automatic Customization Software for Computer Head Controls
By LoPresti, Edmund F.; Brienza, David M.; Proceedings of the RESNA 25th International Conference, Vol. 22, No. 1, pp. 109-111Publication Date: June/July 2002
Paper describing software that automatically adjusts the interface sensitivity of computer head controls to accommodate users with neck movement limitations. A study was conducted to determine whether use of such automatic customization software is associated with increased accuracy in speed in an icon selection task. The study involved two independent variables: (1) head control software, and (2) head control hardware. The two hardware devices were a HeadMaster Plus from Prentke Romich and a Tracker 2000 from Madentec Ltd. The participants selected circular targets measuring 15 millimeters in diameter using a dwell time of 500 milliseconds. Performance was measured in terms of accuracy, throughput, and overshoot. Accuracy is the proportion of icons successfully selected; throughput is a measure of speed, reported in bits per second; overshoot is the maximum distance traveled beyond the icon as a percentage of the distance to the icon from the starting position. Participants demonstrated higher throughput and accuracy when using the experimental software. No significant variances were found when comparing the HeadMaster with the Tracker.
Assistive Products Discussed: TRACKER 2000
HEADMASTER PLUS (MODEL HM-3P)
Published by: Rehabilitation Engineering & Assistive Technology Society of North America (RESNA) (Website:http://www.resna.org)
ISBN: 00-932101-44-5
This publication is included in the library of the National Rehabilitation Information Center (NARIC), accession number O14490
