期刊
NEUROSCIENCE LETTERS
卷 354, 期 2, 页码 123-126出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.neulet.2003.10.002
关键词
encoding; retrieval; visuospatial; verbal; EEG; oscillations
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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