Event-related theta power increases in the human EEG during online sentence processing
Event-related theta power increases in the human EEG during online sentence processing
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DOI：
10.1016/s0304-3940(01)02535-6
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发表时间：
2002-04-19
影响因子：
2.5
通讯作者：
Hagoort, P
中科院分区：
文献类型：
--
作者：
Bastiaansen, MCM;van Berkum, JJA;Hagoort, P
本文通过分析人类脑电图窄频带诱导带功率的事件相关变化，探讨了α和θ节律在单词和句子加工过程中可能发挥的功能作用。结果表明，在句子中出现单词后，θ频率范围内的相位功率增加，而α频率范围内的相位功率下降。这些影响可能与词汇处理或句子上下文相关的文字处理有关。最重要的是，随着句子的展开，θ波能量会有一个缓慢的、频率特异性的增加，这可能与情景记忆痕迹的形成或言语工作记忆负荷的增加有关。(C) 2002爱思唯尔科学爱尔兰有限公司版权所有。
By analyzing event-related changes in induced band power in narrow frequency bands of the human electroencephalograph, the present paper explores a possible functional role of the alpha and theta rhythms during the processing of words and of sentences. The results show a phasic power increase in the theta frequency range, together with a phasic power decrease in the alpha frequency range, following the presentation of words in a sentence. These effects may be related to word processing, either lexical or in relation to sentence context. Most importantly, there is a slow and highly frequency-specific increase in theta power as a sentence unfolds, possibly related to the formation of an episodic memory trace, or to incremental verbal working memory load. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.