Reingold Eyal M, Loschky Lester C
Department of Psychology, University of Toronto, Toronto, Ontario, Canada.
Behav Res Methods Instrum Comput. 2002 Nov;34(4):491-9. doi: 10.3758/bf03195478.
Gaze-contingent multiresolutional displays (GCMRDs) 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. The three experiments reported here document aslowing 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 resolution-defined 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 the study of natural scene perception and for human factors research related to GCMRDs.
凝视相关的多分辨率显示器（GCMRDs）已被提出用于解决许多单用户显示器中的处理和带宽瓶颈问题，其通过在凝视中心的窗口动态放置高分辨率，而其他地方为低分辨率。此处报告的三个实验记录了与凝视相关窗口的存在相关的周边目标获取速度减慢的情况。这种窗口效应在使用动态视频或静态图像的显示器上均有显示。在分辨率定义的窗口条件和亮度定义的窗口条件下，窗口效应相似，这表明周边图像退化不是这种效应的先决条件。窗口效应也不受所使用的窗口边界类型（清晰或混合）的影响。这些结果被解释为一种注意力偏差，由于窗口内项目的竞争增加，导致周边目标的显著性降低。我们讨论了窗口效应对于自然场景感知研究以及与GCMRDs相关的人为因素研究的意义。
