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Investigating haptic assistive interfaces for motion impaired users: force-channels and competitive attractive-basins

Investigating haptic assistive interfaces for motion impaired users: force-channels and competitive attractive-basins

Langdon, Patrick, Hwang, Faustina, Keates, Simeon, Clarkson, P John and Robinson, Peter (2002) Investigating haptic assistive interfaces for motion impaired users: force-channels and competitive attractive-basins. In: EuroHaptics 2002, 8-10 July, 2002, Edinburgh, UK.

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Abstract

Following a pilot study that suggested that force-feedback
gravity wells could, under certain conditions, lead to 20-
50% improvements in time to target in a selection task, a
series of experiments further investigated the potential for
enhancement of user interfaces for disabled computer users
by the use of haptic feedback modulated on the basis of
cursor position. Two experiments are reported examining
(1) the effect of size of attractive basins in adjacent targets
on time to target in a point and click selection task and (2)
the effect of presence of four different types of forcefeedback
channels between start point and target on times
to select a target. It was found that the presence of adjacent
attractive basins was not disruptive of navigation to target, and that haptic force channels may only decrease times for those with high degrees of impairment. Cursor trace analysis suggested that the increased attraction force and range counteracts the disruptive effect of inappropriate cursor capture for the overlapping basins and that inappropriate ballistic movements were suppressed by channels for some of the impaired users but that channels may have had no effect on overshoot errors in these cases.

Item Type: Conference or Conference Paper (Paper)
Additional Information: [1] Acknowledgements (funding): This research is funded in part by the EPSRC, the Canadian Cambridge Trust, and NSERC
Uncontrolled Keywords: investigating haptic assistive interfaces for motion impaired users: force-channels competitive attractive-basins
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
Faculty / Department / Research Group: Faculty of Engineering & Science
Related URLs:
Last Modified: 14 Oct 2016 09:31
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/12964

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