The semantic origin of unconscious priming: Behavioral and event-related potential evidence during category congruency priming from strongly and weakly related masked words
The semantic origin of unconscious priming: Behavioral and event-related potential evidence during category congruency priming from strongly and weakly related masked words
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DOI：
10.1016/j.cognition.2015.09.012
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发表时间：
2016-01
期刊：
影响因子：
3.4
通讯作者：
J. J. Ortells-J.;M. Kiefer;A. Castillo;Montserrat Megías;Alejandro Morillas
中科院分区：
文献类型：
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作者：
J. J. Ortells-J.;M. Kiefer;A. Castillo;Montserrat Megías;Alejandro Morillas
隐蔽一致性启动的机制，语义机制，如语义激活，或非语义机制，如反应激活，仍然是一个争论的问题。为了在这些备选方案中做出选择，本研究记录了反应时(RTS)和事件相关电位(ERPs)，同时被试通过简单呈现(33ms)新的(未练习的)掩蔽中心词对167毫秒(实验1)或34毫秒(实验2)之前的可见词目标执行语义分类任务。质数和目标属于不同的范畴(无关)，或者它们是语义上强相关或弱语义相关的范畴共样本。强关联配对的行为(RT)和电生理掩蔽一致性启动效应显著大于弱关联配对，这表明影响的语义来源。后一种情况下的引爆在统计学上是不可靠的。此外，启动效应调节了N400事件相关电位(ERP)成分，而不是与反应冲突和视觉运动反应启动相关的N200成分时间范围内的事件相关电位(ERPs)。本研究结果表明，新启动词的掩蔽同余启动也依赖于启动词的语义加工，而不是完全由反应激活等非语义机制驱动。
The mechanisms underlying masked congruency priming, semantic mechanisms such as semantic activation or non-semantic mechanisms, for example response activation, remain a matter of debate. In order to decide between these alternatives, reaction times (RTs) and event-related potentials (ERPs) were recorded in the present study, while participants performed a semantic categorization task on visible word targets that were preceded either 167 ms (Experiment 1) or 34 ms before (Experiment 2) by briefly presented (33 ms) novel (unpracticed) masked prime words. The primes and targets belonged to different categories (unrelated), or they were either strongly or weakly semantically related category co-exemplars. Behavioral (RT) and electrophysiological masked congruency priming effects were significantly greater for strongly related pairs than for weakly related pairs, indicating a semantic origin of effects. Priming in the latter condition was not statistically reliable. Furthermore, priming effects modulated the N400 event-related potential (ERP) component, an electrophysiological index of semantic processing, but not ERPs in the time range of the N200 component, associated with response conflict and visuo-motor response priming. The present results demonstrate that masked congruency priming from novel prime words also depends on semantic processing of the primes and is not exclusively driven by non-semantic mechanisms such as response activation.