Tracking Hierarchical Processing in Morphological Decomposition With Brain Potentials
Tracking Hierarchical Processing in Morphological Decomposition With Brain Potentials
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DOI：
10.1037/a0028960
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发表时间：
2012-08-01
影响因子：
2.1
通讯作者：
Rastle, Kathleen
中科院分区：
文献类型：
--
作者：
Lavric, Aureliu;Elchlepp, Heike;Rastle, Kathleen
心理语言学中的一个重要争论涉及视觉单词识别中形态分解过程的性质（例如，暗度= {暗度} + {-ness}）。一种理论认为，这些过程出现在正字法分析和访问之前的意义（Rastle & Davis，2008），另一种理论认为，这些过程出现在更大的时间重叠之间的激活正字法和语义信息（Feldman，奥康纳，和莫斯科索德尔普拉多马丁，2009）。这个问题一直是使用掩蔽启动的研究中激烈辩论的主题，但尚未明确解决。本研究采取另一种方法来解决这一争议，通过检查大脑电位的参与者作出词汇的决定，未启动形态（黑暗），pseudomorphological（角落），和nonmorphological（妓院）刺激。结果显示，非形态学条件和其他2个条件（未显示分化）之间的差异接近190 ms，这可能与完全依赖于正字法的形态学处理相关。只有60-70 ms后，有证据表明，激活的语义信息，当假形态条件偏离其他2个条件。这些结果提供了明确的支持形态处理的层次模型，其中分解是基于最初的正交分析，只有后来的语义信息的约束。
One important debate in psycholinguistics concerns the nature of morphological decomposition processes in visual word recognition (e.g., darkness = {dark} + {-ness}). One theory claims that these processes arise during orthographic analysis and prior to accessing meaning (Rastle & Davis, 2008), and another argues that these processes arise through greater temporal overlap between the activation of orthographic and semantic information (Feldman, O'Connor, & Moscoso del Prado Martin, 2009). This issue has been the subject of intense debate in studies using masked priming but has yet to be resolved unequivocally. The present study takes another approach to resolving this controversy by examining brain potentials as participants made lexical decisions to unprimed morphological (darkness), pseudomorphological (corner), and nonmorphological (brothel) stimuli. Results revealed a difference from similar to 190 ms between the nonmorphological condition and the other 2 conditions (which showed no differentiation), a likely correlate of morphological processing reliant exclusively on orthography. Only 60-70 ms later was there evidence of the activation of semantic information, when the pseudomorphological condition diverged from the other 2 conditions. These results provide unambiguous support for a hierarchical model of morphological processing whereby decomposition is based initially on orthographic analysis and is only later constrained by semantic information.