Dynamic control gain and tactile feedback in the capture of cursor movements

D.V. Keyson

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    Recent research at IPO involving a trackball with force feedback has demonstrated that tactile feedback can enhance the acquisition of targets in graphical user interfaces in terms of movement times and errors. The present study seeks to explore the degree to which being able to feel a target in contrast with changes in the display/control gain, over the target, influences movement performance. Tactile feedback over a target is felt as a pulling force towards the centre of a target, with counterforces applied when moving out of the centre. Changes in the target gain can create a cursor-catching effect by requiring more movement of the control device to enter than to leave the centre of the target. Results of an experiment indicated that target acquisition performance was generally higher in the tactile feedback condition, followed by target gain feedback, in comparison with no-target gain feedback. User interface design issues are discussed in respect to gain and tactile feedback.
    Original languageEnglish
    Pages (from-to)101-108
    Number of pages8
    JournalIPO Annual Progress Report
    Publication statusPublished - 1994


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