Early Occipital Sensitivity to Syntactic Category Is Based on Form Typicality
Early Occipital Sensitivity to Syntactic Category Is Based on Form Typicality
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DOI：
10.1177/0956797610367751
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发表时间：
2010-05-01
影响因子：
8.2
通讯作者：
Pylkkaenen, Liina
中科院分区：
文献类型：
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作者：
Dikker, Suzanne;Rabagliati, Hugh;Pylkkaenen, Liina
在语言处理过程中，句法因素可以迅速影响行为和神经反应;然而，允许这种快速提取句法相关信息的机制仍然知之甚少。我们使用脑磁图来解决这个问题，发现一个意想不到的词类别（例如，最近的公主...“）在暴露后120 ms就能增强视觉皮层的活动，并且这种活动的发生是单词形式与预测单词类别相关的形式属性的兼容性的函数。因为没有敏感性的语言因素已被报道孤立的话，在这个阶段的视觉分析，我们建议，即将到来的句法类别的预测转化为基于形式的估计，这是提供给感觉皮层。这一发现可能是一个关键组成部分，阐明机制，使极端的速度和效率的语言理解。
Syntactic factors can rapidly affect behavioral and neural responses during language processing; however, the mechanisms that allow this rapid extraction of syntactically relevant information remain poorly understood. We addressed this issue using magnetoencephalography and found that an unexpected word category (e.g., "The recently princess ...") elicits enhanced activity in visual cortex as early as 120 ms after exposure, and that this activity occurs as a function of the compatibility of a word's form with the form properties associated with a predicted word category. Because no sensitivity to linguistic factors has been previously reported for words in isolation at this stage of visual analysis, we propose that predictions about upcoming syntactic categories are translated into form-based estimates, which are made available to sensory cortices. This finding may be a key component to elucidating the mechanisms that allow the extreme rapidity and efficiency of language comprehension.