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This study investigated the potential visual interference imposed by displayed peripheral windows that are not central to a user's current task performance. In particular, the study examined the relation between foveal vision and peripheral vision activities in multiwindow systems. It was suggested that the number and layout of the windows in a multiwindow system can interfere with a user's activities while performing a task. Results from a visual search experiment were indicated as follows:
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Displayed peripheral windows interfered with a user's current task performance.
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The number of the peripheral windows is a significant factor in the interference.
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The types of the layout, overlapping or nonoverlapping, are also a significant factor in the interference.
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The activities of the foveal vision get worse when the visual position of the task performance is closer to the peripheral windows.
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These factors have different influences depending on whether the peripheral windows are static or dynamic
We discuss these results from the viewpoint of the nature of the human visual systems, especially the relation between foveal and peripheral vision.
