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P600-like positivity and left anterior negativity responses are elicited by semantic reversibility in nonanomalous sentences
Journal of Neurolinguistics ( IF 2 ) Pub Date : 2013-01-01 , DOI: 10.1016/j.jneuroling.2012.06.001
Jed A Meltzer 1 , Allen R Braun
Affiliation  

ERPs are commonly elicited by semantic and syntactic violations in sentences, leading to proposals that they reflect neural activity underlying ordinary language comprehension. We examined ERPs in an auditory sentence-picture-matching task, using nonanomalous sentences that were either semantically reversible, (boy pushes girl) or irreversible, (boy eats apple). Timelocked to the end of the critical clause, which occurred in the middle of a longer sentence, we observed an enhanced central-posterior positivity in response to the reversible sentences. The topography of this response is consistent with the P600 potential reported in studies of syntactic anomalies and other manipulations related to sentence structure. Following the end of the sentence, during a memory delay period prior to picture onset, reversible sentences also evoked a protracted anterior negativity, predominantly on the left. This negativity was stronger for sentences containing relative clauses compared to simple active sentences, but did not differ between object-embedded and the less complex subject-embedded clauses. The observation of a P600 occurring selectively in reversible sentences supports the interpretation of that potential as reflecting the syntactic processing of thematic relationships, as irreversible sentences contained alternative cues for thematic roles. The left anterior negativity likely reflects later processes of rehearsal and reanalysis of sentence content in working memory.

中文翻译:

P600 样积极和左前消极反应是由非异常句子中的语义可逆性引起的

ERPs 通常由句子中的语义和句法违规引起,导致建议它们反映了普通语言理解背后的神经活动。我们在听觉句子-图片匹配任务中检查了 ERP,使用语义可逆(男孩推女孩)或不可逆(男孩吃苹果)的非异常句子。时间锁定到关键从句的末尾,它发生在更长的句子中间,我们观察到对可逆句子的反应增强的中央后部积极性。此响应的地形与句法异常和其他与句子结构相关的操作研究中报告的 P600 电位一致。在句子结束后,在图片出现之前的记忆延迟期间,可逆的句子也引起了长期的前否定性,主要是在左边。与简单主动句相比,包含关系从句的句子的这种否定性更强,但嵌入宾语和不太复杂的嵌入主语从句之间没有区别。对 P600 选择性出现在可逆句子中的观察支持将该潜力解释为反映主位关系的句法处理,因为不可逆句子包含主位角色的替代线索。左前负性可能反映了工作记忆中句子内容的排练和重新分析的后期过程。但在嵌入宾语和不太复杂的嵌入主语从句之间没有区别。对 P600 选择性出现在可逆句子中的观察支持将该潜力解释为反映主位关系的句法处理,因为不可逆句子包含主位角色的替代线索。左前负性可能反映了工作记忆中句子内容的排练和重新分析的后期过程。但在嵌入宾语和不太复杂的嵌入主语从句之间没有区别。对 P600 选择性出现在可逆句子中的观察支持将该潜力解释为反映主位关系的句法处理,因为不可逆句子包含主位角色的替代线索。左前负性可能反映了工作记忆中句子内容的排练和重新分析的后期过程。
更新日期:2013-01-01
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