Synchronous oscillations in the cerebral cortex

被引：57

作者：

Robinson, PA ^{[2
]}

Wright, JJ

Rennie, CJ

机构：

[1] Univ Iowa, Iowa City, IA 52242 USA

[2] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia

[3] Mental Hlth Res Inst, Parkville, Vic 3052, Australia

[4] Westmead Hosp, Dept Phys Med, Westmead, NSW 2145, Australia

[5] Westmead Hosp, Cognit Neurosci Unit, Westmead, NSW 2145, Australia

来源：

PHYSICAL REVIEW E | 1998年 / 57卷 / 04期

关键词：

D O I：

10.1103/PhysRevE.57.4578

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The dynamics of a cortex driven by a finite number of white-noise point sources is studied using a recently developed wave-equation formulation. Green's functions, power spectra, fluctuation levels, and two-point correlation functions are computed analytically and numerically. It is shown that a range of observed properties of so-called synchronous oscillations in the cerebral cortex can be correctly reproduced using the wave equation that involves only excitatory interactions between neurons. In particular, the observed existence of a maximal correlation at zero temporal lag between spatially separated points is reproduced and explained for a cortex driven by two white-noise sources.

引用

页码：4578 / 4588

页数：11

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