Visual search in modern human-computer interfaces

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Abstract
This article reviews aspects of visual search in relation to computer visual display units. Theoretical issues such as eye movements in visual search are discussed as well as practical examples such as the role of array shape, the benefits of cursor-presented status (insert vs overtype) information, conspicuity of peripherally presented information, and possible benefits of anti-aliased fonts. In association with the four experiments relating to these aspects, the respective follow-up eye movement monitoring studies are also described as these allowed quantification of what otherwise might only have been inferred. The review concludes with four major recommendations. First, much scope remains for exploring the optimization of status (e.g., cursor-presented) information. Second, it would be worth exploring whether icons, like verbal labels, are susceptible to an array shape effect. Third, further work is required (e.g. in the possible role of articulatory differences) in accounting for the ease of locatability of icons over words. Fourth, spatial frequency analysis seems likely to be a major research field over the next decade.

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