Early activation of Broca's area in grammar processing as revealed by the syntactic mismatch negativity and distributed source analysis
Early activation of Broca's area in grammar processing as revealed by the syntactic mismatch negativity and distributed source analysis
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DOI：
10.1080/17588928.2013.860087
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发表时间：
2014-01-01
影响因子：
2
通讯作者：
Van der Lely, Heather K. J.
中科院分区：
文献类型：
--
作者：
Hanna, Jeff;Mejias, Sandrine;Van der Lely, Heather K. J.
虽然神经代谢研究已经揭示了符号（语言，音乐）组合处理中Broca区的激活，但大多数以前的神经生理学研究发现最早的语法指数在颞叶皮层中，大脑前额叶发电机在相对较晚的阶段变得活跃。我们使用注意和无任务的句法不匹配负波（sMMN）事件相关电位（ERP）来测量人脑对参与者母语（法语）中语法信息的快速和自动敏感性。此外，MMN的潜在来源估计应用参数经验贝叶斯（PEB）的方法，与多稀疏先验（MSP）技术。结果表明，可靠的语法相关的激活集中在布罗卡区已经在150-190毫秒的时间窗口，提供了强大的文件，其参与的第一阶段的句法处理。
Though activation of Broca's region in the combinatorial processing of symbols (language, music) has been revealed by neurometabolic studies, most previous neurophysiological research found the earliest grammar indices in the temporal cortex, with inferior-frontal generators becoming active at relatively late stages. We use the attention- and task-free syntactic mismatch negativity (sMMN) event-related potential (ERP) to measure rapid and automatic sensitivity of the human brain to grammatical information in participants' native language (French). Further, sources underlying the MMN were estimated by applying the Parametrical Empirical Bayesian (PEB) approach, with the Multiple Sparse Priors (MSP) technique. Results showed reliable grammar-related activation focused on Broca's region already in the 150-190 ms time window, providing robust documentation of its involvement in the first stages of syntactic processing.