Automatic word form processing in masked priming: an ERP study.
Automatic word form processing in masked priming: an ERP study.
复制标题
掩蔽启动中的自动文字形式处理：一项 ERP 研究。
DOI：
10.1111/j.1469-8986.2005.00286.x
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
Coch,Donna
中科院分区：
文献类型：
--
作者：
Grossi,Giordana;Coch,Donna
在一项掩蔽启动研究中，五种基本类型(无关单词、可发音的非单词、非法字母串、假字体或中性Xs)位于单词和非单词目标之前，该研究旨在研究由事件相关电位(ERPs)指示的单词形式加工。受试者对目标进行词汇判断任务。在150-250毫秒的时期，额叶中央、中央和颞顶部位的事件相关电位最小，最小的是前面有单词和非单词的目标，其次是字母串、假字体，最后是中性启动。这种对正字法敏感的难解模式支持这样一种观点，即词形加工涉及的神经系统在150-250ms的历时指数激活中的事件相关电位可能是分级的，在类单词刺激下最大，在类字母刺激下相对减少。此外，这些来自掩蔽启动范式的结果证实了词形加工的自动性质。
Five prime types (unrelated words, pronounceable nonwords, illegal strings of letters, false fonts, or neutral strings of Xs) preceded word and nonword targets in a masked priming study designed to investigate word form processing as indexed by event‐related potentials (ERPs). Participants performed a lexical decision task on targets. In the 150–250‐ms epoch at fronto‐central, central, and temporo‐parietal sites ERPs were smallest to targets preceded by words and nonwords, followed by letter strings, false fonts, and finally neutral primes. This refractory pattern sensitive to orthography supports the view that ERPs in the 150–250‐ms epoch index activation of neural systems involved in word form processing and suggests that such activation may be graded, being maximal with word‐like stimuli and relatively reduced with alphabet‐like stimuli. Further, these results from a masked priming paradigm confirm the automatic nature of word form processing.