Gunter T C, Friederici A D
Max-Planck-Institute of Cognitive Neuroscience, Leipzig, Germany.
Psychophysiology. 1999 Jan;36(1):126-37. doi: 10.1017/s004857729997155x.
In a within-subjects design, event-related potentials were compared for two types of sentence-final syntactic errors: Incorrect verb inflection and incorrect word category (phrase structure). In a grammatical judgment task, these errors triggered robust N400 and P600 components. To assess the degree of automaticity of the underlying linguistic processes, the N400 and P600 effects were measured in a task for which the participants judged whether a word in a sentence was printed in upper case. In this physical judgment task, the N400 and P600 following verb inflection errors were greatly attenuated or absent, whereas those elicited by word category violation were only slightly diminished in amplitude. The data suggest that word category information is processed more automatically than inflectional information. The P600 appears to reflect a relatively controlled language-related process.
在一项被试内设计中，对两种句末句法错误的事件相关电位进行了比较：动词屈折变化错误和词类（短语结构）错误。在语法判断任务中，这些错误引发了强烈的N400和P600成分。为了评估潜在语言过程的自动化程度，在一项任务中测量了N400和P600效应，在该任务中，参与者判断句子中的一个单词是否用大写字母印刷。在这个物理判断任务中，动词屈折变化错误后的N400和P600大大减弱或消失，而词类违反引发的N400和P600幅度仅略有减小。数据表明，词类信息比屈折变化信息的处理更自动化。P600似乎反映了一个相对受控制的语言相关过程。
