Dynamic cursor gain and tactual feedback in the capture of cursor movements

Article Abstract:

Sixteen subjects with normal or corrected-to-normal vision participated in a a study which examined the degree to which a cursor-catching feedback using dynamic cursor gain can lessen target acquisition times in contrast to visual only and combined visual-tactual feedback. Each subject completed four target feedback conditions, namely, visual only, visual-tactual, visual-dynamic and combined-dynamic, which were tested under three outside-target gain levels. Results showed that a tactually felt 'hole' field in the target area gives a stronger 'catching effect' sense than a dynamic target gain.

Navigation, Target acquisition, Automatic gain control

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Steps toward output device-independent feedback: evaluation of a standardised vocabulary

Article Abstract:

Individuals with sensory disabilities are able to use a vocabulary that describes the content and context of graphical user interface (GUI) elements within one hour of training, but make mistakes. The number of omission errors is more than that of commission errors. GUI displays, with a small number of elements and low complexity, produce more errors. Clinical specialists make fewer mistakes than computer specialists. The vocabulary uses device-independent factors to describe computer-interfaces so that the interfaces can be used by people with different sensory disabilities.

Telecommunications systems, Disabled persons, Computer interfaces, Interfaces (Computers)

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Feedback quality and environmentally friendly use of domestic central heating systems

Article Abstract:

The influence of system-embedded feedback on user behavior during the environmentally friendly operation of a central heating system is examined. The analysis has shown that the increased feedback results in improved environmentally friendly performance and the type of strategy used to improve human-machine system performance.

Analysis, Heating equipment, Design and construction, Human-machine systems, Heating, Green design, Report

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