Syllable-frequency effects in visual word recognition: evidence from ERPs
Syllable-frequency effects in visual word recognition: evidence from ERPs
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DOI：
10.1097/00001756-200403010-00032
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发表时间：
2004-03-01
期刊：
影响因子：
1.7
通讯作者：
Carreiras, M
中科院分区：
文献类型：
--
作者：
Barber, H;Vergara, M;Carreiras, M
进行词汇决策实验，同时记录事件相关电位。对每个单词的词频和首音节频率进行了控制。结果表明，高频词在N400时间窗内产生的负幅值低于低频词，而音节频率则相反。含有高频音节的单词比含有低频音节的单词产生更多的负振幅。重要的是，在P200时间窗下也获得了显著的音节频率效应。研究结果在一个互动激活模型的框架中得到解释，在这个模型中，高频音节在分析正字法或语音表征期间产生大量词汇候选的初始激活，这些音节必须在随后被抑制以允许识别一个独特的单词。这些发现支持了这样一种观点，即至少在音节边界清晰的语言中，音节是视觉单词识别过程中的功能性亚词汇单位。
A lexical decision experiment was conducted while event related potentials (ERPs) were recorded. The word frequency and the first syllable frequency of each word were manipulated. Results showed that, while high frequency words produced less negative amplitudes in the N400 time window than low frequency words, the inverse pattern was found for syllable frequency. Words containing high frequency syllables produced more negative amplitudes than words containing low frequency syllables. Importantly, a significant syllable frequency effect was also obtained at the P200 time window. The results are interpreted in the framework of an interactive activation model, in which high frequency syllables produce the initial activation of a larger number of lexical candidates during the analysis of orthographic or phonological representations, which have to be inhibited later to allow the identification of a unique word. These findings support the idea that, at least in languages with clear syllabic boundaries, syllables are functional sublexical units during visual word recognition.