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中文摘要：
视觉标记是与任务目标相关的自上而下的优先选择解释机制。视觉标记理论对preview效益——对后出现项目的视觉优先选择现象——提供了合理的解释：对先出现的项目自上而下的抑制提高了对后出现项目的优先选择等级。首先介绍视觉标记经典实验范式和preview效益，然后阐述研究者对视觉标记抑制机制的两种主要观点，进而介绍其他优先选择理论对preview效益的解释及其局限性，最后指出视觉标记研究中亟待解决的问题。
英文摘要：
Visual marking has more reasonably explained the phenomena of prioritizing selection that occur in temporal asynchrony between new and old items. Theory of visual making supposes that the top-down inhibition of old items prioritizes new items. This article reviewed the classical experiment paradigm of visual marking and the preview benefit, and then summarized two views of inhibition mechanisms, i.e., the inhibition based on the location and the inhibition based on the feature. Several other mechanisms and relevant limitations were analyzed. The implication in the study of visual marking was provided.
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