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Gravity well visibility in haptic interfaces for motion-impaired

Hwang, F., Keates, S., Langdon, P. and Clarkson, J. (2003) Gravity well visibility in haptic interfaces for motion-impaired. In: Proceedings of the 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Catalogue, 2 (03CH37439). IEEE, pp. 1670-1673. ISBN 0-7803-7789-3

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To link to this item DOI: 10.1109/IEMBS.2003.1279706

Abstract/Summary

Haptic computer interfaces provide users with feedback through the sense of touch, thereby allowing users to feel a graphical user interface. Force feedback gravity wells, i.e. attractive basins that can pull the cursor toward a target, are one type of haptic effect that have been shown to provide improvements in "point and click" tasks. For motion-impaired users, gravity wells could improve times by as much as 50%. It has been reported that the presentation of information to multiple sensory modalities, e.g. haptics and vision, can provide performance benefits. However, previous studies investigating the use of force feedback gravity wells have generally not provided visual representations of the haptic effect. Where force fields extend beyond clickable targets, the addition of visual cues may affect performance. This paper investigates how the performance of motion-impaired computer users is affected by having visual representations of force feedback gravity wells presented on-screen. Results indicate that the visual representation does not affect times and errors in a "point and click" task involving multiple targets.

Item Type:Book or Report Section
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Biological Sciences > Department of Bio-Engineering
ID Code:27024
Publisher:IEEE

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