Electrophysiological correlates of the brain's intrinsic large-scale functional architecture

被引：496

作者：

He, Biyu J. ^{[1
]}

Snyder, Abraham Z. ^{[1
,2
]}

Zempel, John M. ^{[2
]}

Smyth, Matthew D. ^{[3
]}

Raichle, Marcus E. ^{[1
,2
,4
,5
]}

机构：

[1] Washington Univ, Sch Med, Dept Radiol, St Louis, MO 63110 USA

[2] Washington Univ, Sch Med, Dept Neurol, St Louis, MO 63110 USA

[3] Washington Univ, Sch Med, Dept Neurosurg, St Louis, MO 63110 USA

[4] Washington Univ, Sch Med, Dept Anat & Neurobiol, St Louis, MO 63110 USA

[5] Washington Univ, Sch Med, Dept Biomed Engn, St Louis, MO 63110 USA

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2008年 / 105卷 / 41期

基金：

美国国家卫生研究院;

关键词：

electrocorticography; fMRI; functional connectivity; human; sleep;

D O I：

10.1073/pnas.0807010105

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Spontaneous fluctuations in the blood-oxygen-level-dependent (BOLD) signals demonstrate consistent temporal correlations within large-scale brain networks associated with different functions. The neurophysiological correlates of this phenomenon remain elusive. Here, we show in humans that the slow cortical potentials recorded by electrocorticography demonstrate a correlation structure similar to that of spontaneous BOLD fluctuations across wakefulness, slow-wave sleep, and rapid-eye-movement sleep. Gamma frequency power also showed a similar correlation structure but only during wakefulness and rapid-eye-movement sleep. Our results provide an important bridge between the large-scale brain networks readily revealed by spontaneous BOLD signals and their underlying neurophysiology.

引用

页码：16039 / 16044

页数：6

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