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| Research article summary (published 15 May 2002): |
The interplay between theta and alpha oscillations in the human electroencephalogram reflects the transfer of information between memory systems.
Full Abstract
The exchange of information between the working and long-term memory system (WMS and LTMS) was investigated. We analyzed evoked theta and upper alpha desynchronization in a special memory task, designed to study the transfer of information between both memory systems. The results show that during attempts to retrieve information from the LTMS, evoked theta oscillations spread from anterior to posterior recording sites. When information actually is retrieved, the direction reverses and theta spreads to frontal sites. This time point--when direction reverses--varies between subjects to a large extent but is significantly correlated with memory performance and the onset of upper alpha desynchronization. We conclude that this phenomenon reflects the transfer of information between the WMS and LTMS
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Author information
Author/s: Sauseng, P (P); Klimesch, W (W); Gruber, W (W); Doppelmayr, M (M); Stadler, W (W); Schabus, M (M);
Affiliation: Department of Physiological Psychology, Institute of Psychology, University of Salzburg, Hellbrunnerstrasse 34, 5020 Salzburg, Austria.
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: Neuroscience letters (Neurosci Lett), published in Ireland. (Language: eng)
Reference: 2002-May; vol 324 (issue 2) : pp 121-4
Dates: Created 2002/05/03; Completed 2002/07/12; Revised 2006/11/15;
PMID: 11988342, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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