Exogeneous Spatial Cueing beyond the Near Periphery: Cueing Effects in a Discrimination Paradigm at Large Eccentricities
Exogeneous Spatial Cueing beyond the Near Periphery: Cueing Effects in a Discrimination Paradigm at Large Eccentricities
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DOI：
10.3390/vision4010013
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发表时间：
2020-02
期刊：
影响因子：
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通讯作者：
Katharina Weiß
中科院分区：
文献类型：
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作者：
Katharina Weiß
尽管视觉注意力是实验心理学和视觉科学中研究最彻底的主题之一，但大多数研究往往仅限于外围。注意力研究中使用的偏心率通常不超过 20° 至 30°，但大多数研究甚至使用相当小的最大偏心率。因此，关于超出此范围的注意力的经验知识很少，这可能是由于之前缺乏合适的实验设备来研究最外围的注意力。由于时间高分辨率投影仪和头戴式显示器（HMD）的发展，这种情况目前正在改变，这些投影仪和头戴式显示器（HMD）允许在远偏心率下显示实验刺激。在本研究中，使用带有占位符的辨别任务，在外围波斯纳提示范式中研究了超出近外围（15°、30°、56°实验1）和（15°、35°、56°实验2）的视觉注意力。有趣的是，尽管视野及其功能细分的不均匀性可能会导致人们产生其他怀疑，但整个偏心率范围都揭示了提示效应。
Although visual attention is one of the most thoroughly investigated topics in experimental psychology and vision science, most of this research tends to be restricted to the near periphery. Eccentricities used in attention studies usually do not exceed 20° to 30°, but most studies even make use of considerably smaller maximum eccentricities. Thus, empirical knowledge about attention beyond this range is sparse, probably due to a previous lack of suitable experimental devices to investigate attention in the far periphery. This is currently changing due to the development of temporal high-resolution projectors and head-mounted displays (HMDs) that allow displaying experimental stimuli at far eccentricities. In the present study, visual attention was investigated beyond the near periphery (15°, 30°, 56° Exp. 1) and (15°, 35°, 56° Exp. 2) in a peripheral Posner cueing paradigm using a discrimination task with placeholders. Interestingly, cueing effects were revealed for the whole range of eccentricities although the inhomogeneity of the visual field and its functional subdivisions might lead one to suspect otherwise.