Theta coupling in the human electroencephalogram during a working memory task

被引：164

作者：

Sauseng, P ^{[1
]}

Klimesch, W ^{[1
]}

Doppelmayr, M ^{[1
]}

Hanslmayr, S ^{[1
]}

Schabus, M ^{[1
]}

Gruber, WR ^{[1
]}

机构：

[1] Salzburg Univ, Dept Physiol Psychol, A-5020 Salzburg, Austria

来源：

NEUROSCIENCE LETTERS | 2004年 / 354卷 / 02期

关键词：

encoding; retrieval; visuospatial; verbal; EEG; oscillations;

D O I：

10.1016/j.neulet.2003.10.002

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

The role of coupling between prefrontal and temporo-parietal brain areas within the theta frequency range of the human electroencephalogram was explored in a working memory task. During encoding of visual information higher theta amplitudes were observed in the right compared to the left hemisphere. Retrieval of visuospatial and verbal information elicited a more bilateral activation pattern. These effects were accompanied by theta coupling between dorsolateral prefrontal and right posterior temporal electrode sites during encoding. During retrieval prefrontal and bilateral temporo-parietal brain areas were coupled. These results support the idea of working memory functions being dependent on distributed prefrontal-temporal networks. (C) 2003 Elsevier Ireland Ltd. All rights reserved.

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收藏

页码：123 / 126

页数：4

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