Sauseng P, Klimesch W, Gruber W, Doppelmayr M, Stadler W, Schabus M
Department of Physiological Psychology, Institute of Psychology, University of Salzburg, Hellbrunnerstrasse 34, 5020 Salzburg, Austria.
Neurosci Lett. 2002 May 17;324(2):121-4. doi: 10.1016/s0304-3940(02)00225-2.
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
我们对工作记忆系统和长期记忆系统（WMS和LTMS）之间的信息交换进行了研究。我们在一项特殊的记忆任务中分析了诱发的θ波和上部α波去同步化，该任务旨在研究两个记忆系统之间的信息传递。结果表明，在试图从LTMS检索信息时，诱发的θ振荡从前部记录部位传播到后部记录部位。当信息实际被检索到时，方向反转，θ波传播到额叶部位。这个方向反转的时间点在个体之间有很大差异，但与记忆表现和上部α波去同步化的开始显著相关。我们得出结论，这种现象反映了WMS和LTMS之间的信息传递。
