Theta synchronization in the human EEG and episodic retrieval

被引：88

作者：

Doppelmayr, M ^{[1
]}

Klimesch, W ^{[1
]}

Schwaiger, J ^{[1
]}

Auinger, P ^{[1
]}

Winkler, T ^{[1
]}

机构：

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

来源：

NEUROSCIENCE LETTERS | 1998年 / 257卷 / 01期

基金：

奥地利科学基金会;

关键词：

event-related desynchronization; event-related synchronization; theta; synchronization; brain oscillations; episodic memory;

D O I：

10.1016/S0304-3940(98)00805-2

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Event-related desynchronization (ERD) and synchronization (ERS) was measured during episodic retrieval in a specially designed recognition task which forces subjects to avoid semantic search strategies. ERD represents the percentage of a decrease, ERS an increase in band power. The results show that only the theta band differentiates between good and bad episodic memory performers and that good performance is related to a large degree of theta synchronization. The delta and alpha bands did not yield significant effects. Topographical differences in theta ERS reveal that good performers use primarily their right hemisphere to retrieve episodic information. This finding agrees with respective results from PET studies. (C) 1998 Elsevier Science Ireland Ltd. All rights reserved.

引用

页码：41 / 44

页数：4

共 15 条

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Basar E, 1997, INT J PSYCHOPHYSIOL, V26, P1

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