Alpha phase synchronization predicts P1 and N1 latency and amplitude size
Alpha phase synchronization predicts P1 and N1 latency and amplitude size
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DOI：
10.1093/cercor/bhh139
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发表时间：
2005-04-01
期刊：
影响因子：
3.7
通讯作者：
Doppelmayr, M
中科院分区：
文献类型：
--
作者：
Gruber, WR;Klimesch, W;Doppelmayr, M
振荡相位重置模型预测事件相关电位(ERP)成分是由不同频率的诱发振荡叠加而成的。我们在一项记忆任务中研究了这个问题，在这项任务中，人类受试者必须对图片的呈现做出反应，提取一个语言标签。结果表明：(I)在Delta、theta、α和beta范围内诱发的振荡经历了显著的相位重置；(Ii)在(Iii)与P1-N1复合波的潜伏期一致的小时间窗口内，绝对相位变得同步。我们的结论是，至少部分地可以通过频率之间的相位同步来预测ERP分量的潜伏期。
The oscillatory phase-resetting model predicts that event-related potential (ERP) components are generated by a superposition of evoked oscillations with different frequencies. We investigate this question in a memory task in which human subjects had to retrieve a verbal label in response to the presentation of a picture. The results show that (i) evoked oscillations in the delta, theta, alpha and beta range undergo a significant phase resetting and (ii) become synchronized in absolute phase during small time windows that (iii) coincide with the latencies of the P1-N1 complex. Our conclusion is that the latencies of ERP components can be predicted at least in part by phase synchronization between frequencies.