Lester C. Loschky

Salience of Peripheral 2 Abstract The three experiments reported document a slowing of peripheral target acquisition associated with the presence of a gaze-contingent window. This window effect was shown for displays using either moving video or still images. The window effect was similar across a resolutiondefined window condition and a luminance-defined window condition suggesting that peripheral image degradation is not a prerequisite of this effect. The window effect was also unaffected by the type of window boundary used (sharp or blended). These results are interpreted in terms of an attentional bias resulting in a reduced saliency of peripheral targets due to increased competition from items within the window. We discuss the implications of the window effect for investigating the perceptual processes involved in natural scenes and for gaze-contingent multiresolutional displays (GCMRDs) that have been proposed to solve the processing and bandwidth bottleneck in many single-user displays, by dynamically placing high-resolution in a window at the center of gaze, with lower resolution everywhere else.