Event‐related potentials (ERPs) derived from electroencephalography (EEG) have proven useful for understanding linguistic processes during language perception and production. Words are commonly produced in sequences, yet most ERP studies have used single‐word experimental designs. Single‐word designs reduce potential ERP overlap in word sequence production. However, word sequence production engages brain mechanisms in different ways than single word production. In particular, speech monitoring and planning mechanisms are more engaged than for single words since several words must be produced in a short period of time. This study evaluates the feasibility of recording ERP components in the context of word sequence production, and whether separate components could be isolated for each word. Scalp EEG data were acquired, while participants recited word sequences from memory at a regular pace, using a tongue‐twister paradigm. The results revealed fronto‐central error‐related negativity, previously associated with speech monitoring, which could be distinguished for each word. Its peak amplitude was sensitive to Cycle and Phonological Similarity. However, an effect of sequential production was also observable on baseline measures, indicating baseline shifts throughout the word sequence due to concurrent sustained medial‐frontal EEG activity. We also report a late left anterior negativity (LLAN), associated with verbal response planning and execution, onsetting around 100 ms before the first word in each cycle and sustained throughout the rest of the cycle. This work underlines the importance of considering the contribution of transient and sustained EEG activity on ERPs, and provides evidence that ERPs can be used to study sequential word production.

中文翻译：

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使用事件相关电位表征多词语音产生

事实证明，源自脑电图 (EEG) 的事件相关电位 (ERP) 对于理解语言感知和生成过程中的语言过程很有用。单词通常按顺序产生，但大多数 ERP 研究都使用单单词实验设计。单字设计减少了字序列生成中潜在的 ERP 重叠。然而，单词序列生成以不同于单个单词生成的方式参与大脑机制。特别是，语音监控和规划机制比单个单词更有吸引力，因为必须在短时间内产生多个单词。本研究评估了在单词序列生成的背景下记录 ERP 组件的可行性，以及是否可以为每个单词隔离单独的组件。获取头皮脑电图数据，同时参与者使用绕口令范式以固定的速度背诵记忆中的单词序列。结果揭示了额中央错误相关的消极性，以前与语音监控相关，可以针对每个单词进行区分。其峰值幅度对周期和音系相似性敏感。然而，在基线测量上也可以观察到顺序产生的影响，这表明由于同时持续的内侧额叶脑电图活动而导致整个单词序列的基线发生变化。我们还报告了晚期左前消极情绪 (LLAN)，与言语反应计划和执行相关，在每个周期中第一个单词之前 100 毫秒左右出现，并在整个周期的其余部分持续存在。这项工作强调了考虑短暂和持续脑电图活动对 ERP 的贡献的重要性，并提供了 ERP 可用于研究顺序单词产生的证据。