Prosodic phonological representations early in visual word recognition
Prosodic phonological representations early in visual word recognition
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DOI：
10.1037/0096-1523.34.1.224
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发表时间：
2008-02-01
影响因子：
2.1
通讯作者：
Martin, Andrea E.
中科院分区：
文献类型：
--
作者：
Ashby, Jane;Martin, Andrea E.
两项实验研究了视觉单词识别过程中使用的语音表征的性质。我们测试了最小性约束（R. Frost，1998）是否将早期表示的复杂性限制为简单的音素串。或者，读者可能会在词汇访问之前激活包含韵律音节信息的详细表示。在修改后的词汇决策任务（实验 1）中，单词之前是与目标的初始音节一致的中心凹预览，以及包含比初始音节多或少 1 个字母的预览。音节一致条件下的词汇决策时间比不一致条件下更快。在实验 2 中，我们在掩蔽启动范式中记录了单个单词阅读期间的脑电势（脑电图）。与音节不一致条件下引出的波形相比，在音节一致条件下引出的事件相关电位波形在目标后250-350ms更积极。结合起来，这些实验表明读者在英语视觉单词识别中很早就处理了韵律音节信息。他们提供了进一步的证据，证明熟练的读者在默读期间通常会激活精心设计的、类似语音的语音表征。
Two experiments examined the nature of the phonological representations used during visual word recognition. We tested whether a minimality constraint (R. Frost, 1998) limits the complexity of early representations to a simple string of phonemes. Alternatively, readers might activate elaborated representations that include prosodic syllable information before lexical access. In a modified lexical decision task (Experiment 1), words were preceded by parafoveal previews that were congruent with a target's initial syllable as well as previews that contained 1 letter more or less than the initial syllable. Lexical decision times were faster in the syllable congruent conditions than in the incongruent conditions. In Experiment 2, we recorded brain electrical potentials (electroencephalograms) during single word reading in a masked priming paradigm. The event-related potential waveform elicited in the syllable congruent condition was more positive 250-350 ms posttarget compared with the waveform elicited in the syllable incongruent condition. In combination, these experiments demonstrate that readers process prosodic syllable information early in visual word recognition in English. They offer further evidence that skilled readers routinely activate elaborated, speechlike phonological representations during silent reading.