Visual marking: Prioritizing selection for new objects by top-down attentional inhibition of old objects
Visual marking: Prioritizing selection for new objects by top-down attentional inhibition of old objects
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DOI：
10.1037/0033-295x.104.1.90
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发表时间：
1997-01-01
影响因子：
5.4
通讯作者：
Humphreys, GW
中科院分区：
文献类型：
--
作者：
Watson, DG;Humphreys, GW
作者提出了一种新的机制，优先选择新的事件：视觉标记。在一个改进的合取搜索任务中，作者提出了一组干扰词之前，其余的项目，其中包含的目标，如果存在。搜索的效率，如果只有第二个项目，这举行时，眼球运动被阻止，并需要一个400毫秒之间的差距，旧的和新的项目。当新项目出现时，旧干扰物位置的亮度变化会消除这种效应，并且通过增加注意要求负荷任务来减少这种效应。作者提出，对静态刺激位置施加空间平行的自上而下的注意抑制可以忽略旧项目。作者讨论了标记和其他帐户的视觉选择和潜在的神经生理机制之间的关系。
The authors propose a new mechanism for prioritizing the selection of new events: visual marking. In a modified conjunction search task the authors presented one set of distracters before the remaining items, which contained the target if present. Search was as efficient as if only the second items were presented This held when eye movements were prevented and required a gap of 400 ms between the old and new items. The effect was abolished by luminance changes at old distracter locations when the new items appeared, and it was reduced by the addition of an attention demanding load task The authors propose that old items can be ignored by spatially parallel, top-down attentional inhibition applied to the locations of static stimuli. The authors discuss the relations between marking and other accounts of visual selection and potential neurophysiological mechanisms.