Self-organized 40 Hz synchronization in a physiological theory of EEG

被引：20

作者：

Bojak, I. ^{[1
]}

Liley, D. T. J. ^{[1
]}

机构：

[1] Swinburne Univ Technol, Ctr Intelligent Syst & Complex Proc, Hawthorn, Vic 3122, Australia

来源：

NEUROCOMPUTING | 2007年 / 70卷 / 10-12期

关键词：

electroencephalogram; self-organization; gamma band; 40; Hz; synchronization;

D O I：

10.1016/j.neucom.2006.10.087

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

We present evidence that large-scale spatial coherence of 40 Hz oscillations can emerge dynamically in a cortical mean field theory. The simulated synchronization time scale is about 150 ms, which compares well with experimental data on large-scale integration during cognitive tasks. The same model has previously provided consistent descriptions of the human EEG at rest, with tranquilizers, under anesthesia, and during anesthetic-induced epileptic seizures. The emergence of coherent gamma band activity is brought about by changing just one physiological parameter until cortex becomes marginally unstable for a small range of wavelengths. This suggests for future study a model of dynamic computation at the edge of cortical stability. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：2085 / 2090

页数：6

共 16 条

[1] Modeling the effects of anesthesia on the electroencephalogram [J].