使用过滤任务来测量选择性注意的空间范围。
Using a filtering task to measure the spatial extent of selective attention.
作者信息
Palmer John, Moore Cathleen M
机构信息
Department of Psychology, University of Washington, Seattle, 98195-1525, USA.
出版信息
Vision Res. 2009 Jun;49(10):1045-64. doi: 10.1016/j.visres.2008.02.022. Epub 2008 Apr 10.
Abstract
The spatial extent of attention was investigated by measuring sensitivity to stimuli at to-be-ignored locations. Observers detected a stimulus at a cued location (target), while ignoring otherwise identical stimuli at nearby locations (foils). Only an attentional cue distinguished target from foil. Several experiments varied the contrast and separation of targets and foils. Two theories of selection were compared: contrast gain and a version of attention switching called an all-or-none mixture model. Results included large effects of separation, rejection of the contrast gain model, and the measurement of the size and profile of the spatial extent of attention.
摘要
通过测量对被忽略位置处刺激的敏感度来研究注意力的空间范围。观察者在一个被提示的位置（目标）检测刺激，同时忽略附近位置处其他相同的刺激（干扰物）。只有一个注意力提示将目标与干扰物区分开来。几个实验改变了目标和干扰物的对比度和间距。比较了两种选择理论：对比度增益和一种称为全或无混合模型的注意力切换版本。结果包括间距的显著影响、对对比度增益模型的否定，以及对注意力空间范围大小和轮廓的测量。
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