Visual discrimination performance is related to decreased alpha amplitude but increased phase locking

被引：196

作者：

Hanslmayr, S ^{[1
]}

Klimesch, W ^{[1
]}

Sauseng, RFI ^{[1
]}

Gruber, W ^{[1
]}

Doppelmayr, M ^{[1
]}

Freunberger, R ^{[1
]}

Pecherstorfer, T ^{[1
]}

机构：

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

来源：

NEUROSCIENCE LETTERS | 2005年 / 375卷 / 01期

基金：

奥地利科学基金会;

关键词：

EEG; oscillations; perception; alpha; phase-resetting; ERP;

D O I：

10.1016/j.neulet.2004.10.092

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

This study investigated the question whether good and bad performance in a visual discrimination task is related to resting alpha power in a different way as it is known from memory tasks. The results show that good perceptual but not memory performance is related to low alpha amplitudes. In addition, we found that large phase resetting in the alpha band, and enhanced early components in the ER-P are related to good performance in the discrimination task. The conclusion of this study is that in contrast to memory performance which is related to large resting alpha activity low alpha amplitudes are an indicator for good perceptual performance. (C) 2004 Elsevier Ireland Ltd. All rights reserved.

引用

页码：64 / 68

页数：5

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