Wassenaar Marlies, Hagoort Peter
Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands.
Brain Lang. 2005 Feb;92(2):117-37. doi: 10.1016/j.bandl.2004.05.011.
An event-related brain potential experiment was carried out to investigate on-line syntactic processing in patients with Broca's aphasia. Subjects were visually presented with sentences that were either syntactically correct or contained violations of word-category. Three groups of subjects were tested: Broca patients (N = 11), non-aphasic patients with a right hemisphere (RH) lesion (N = 9), and healthy aged-matched controls (N = 15). Both control groups appeared sensitive to the violations of word-category as shown by clear P600/SPS effects. The Broca patients displayed only a very reduced and delayed P600/SPS effect. The results are discussed in the context of a lexicalist parsing model. It is concluded that Broca patients are hindered to detect on-line violations of word-category, if word class information is incomplete or delayed available.
进行了一项与事件相关的脑电位实验，以研究布罗卡失语症患者的在线句法处理。向受试者视觉呈现句法正确或包含词类违反情况的句子。测试了三组受试者：布罗卡失语症患者（N = 11）、右半球（RH）病变的非失语症患者（N = 9）和年龄匹配的健康对照组（N = 15）。如明显的P600/SPS效应所示，两个对照组似乎对词类违反情况敏感。布罗卡失语症患者仅表现出非常微弱且延迟的P600/SPS效应。在词汇主义句法分析模型的背景下讨论了结果。得出的结论是，如果词类信息不完整或延迟可得，布罗卡失语症患者在检测在线词类违反方面会受到阻碍。
