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基于记忆的注意捕获和注意抑制效应:ERP证据 被引量:5

Electrophysiological evidence for memory-based attentional capture and memory-based attentional rejection effects
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摘要 采用工作记忆与视觉搜索双任务范式,通过操作匹配试次出现概率来诱发不同水平的认知控制动机,考察了基于记忆的注意引导过程的时程特点。结果:记忆匹配刺激首先诱发了N2pc成分,随后诱发了与抑制过程相关的差异正波。并且,认知控制动机水平越高,N2pc波幅越小、潜伏期越短;抑制性差异正波波幅越大。结论:基于记忆的注意引导过程包括早期的注意捕获和后期的注意抑制两个阶段;其效应量和时程受到认知控制动机水平的调节。 Biased competition theory suggests that stimuli matching the contents of visual working memory can always capture attention. However, the tests of this hypothesis failed to product consistent results. Some researches indicated that items matching the contents of visual working memory can automatically capture attention(i.e., memory-based attentional capture). Others argued that the contents of visual working memory are not necessary to capture attention. They can be rejected when they were irrelevant to the goal of the current task(i.e., memory-based attentional rejection). One of the remained questions is that whether or not the memory-based attentional capture effect is obligatory during the early deployments of visual attention, or in other words, whether or not the memory-based attentional rejection effect can be found during the early attentional deployments. Present study conducted an ERP experiment to investigate the time course of memory-based attentional guidance. Participants performed a visual search task while concurrently maintaining an item in visual object working memory. The search task included one target and one distractor. In matching trials, the search distractor shared the same color with the memory item. In control trials, neither the search target nor the distractor matched the color of the memory item. Meantime, the proportion of matching trials(20%/50%/80%) wasmanipulated. Higher proportion of matching trials elicits higher level of cognitive control incentive. Behavioural results showed search RTs were faster in matching trials than in control trials when the proportion of matching trials was set to be 50% and 80%, suggesting that items matching the contents of working memory can be rejected. However, no effect of trial type was found on search RTs when the proportion of matching trials was 20%. ERP results firstly revealed N2 pc components at approximately 200~300 ms post-stimulus in all three proportion conditions(20%/50%/80%), suggesting the memory-based attentional ca
作者 胡艳梅 张明 HU Yanmei; ZHANG Ming (1 Department of Psychology, School of Education, Northeast Normal University, Changchun 130024, China;2 Department of Psychology, School of Education, Soochow University, Suzhou 215000, China)
出处 《心理学报》 CSSCI CSCD 北大核心 2016年第1期12-21,共10页 Acta Psychologica Sinica
基金 国家自然科学基金项目资助(NSFC:31300833/31371025) 东北师范大学哲学社会科学校内青年基金项目(中央高校基本科研业务费专项资金资助 编号:XQ15010
关键词 工作记忆 注意捕获 注意抑制 N2pc working memory attentional capture attentional rejection N2pc
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参考文献33

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二级参考文献315

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