Fractal complexity in spontaneous EEG metastable-state transitions: new vistas on integrated neural dynamics

被引:65
作者
Allegrini, Paolo [1 ,2 ]
Paradisi, Paolo [3 ]
Menicucci, Danilo [1 ,2 ]
Gemignani, Angelo [1 ,2 ,4 ]
机构
[1] CNR, Ist Fisiol Clin, I-56124 Pisa, Italy
[2] Scuola Super Sant Anna, Ctr EXTREME, Pisa, Italy
[3] CNR, Ist Sci & Tecnol Informaz A Faedo, Pisa, Italy
[4] Univ Pisa, Dipartmento Sci Fisiol, Pisa, Italy
来源
FRONTIERS IN PHYSIOLOGY | 2010年 / 1卷
关键词
EEG; renewal processes; RTPs; critical phenomena; entropy; NEURONAL AVALANCHES; BRAIN; INTERMITTENCY; CONNECTIVITY; CRITICALITY; DIFFUSION; NETWORKS; FIELD; MODE;
D O I
10.3389/fphys.2010.00128
中图分类号
Q4 [生理学];
学科分类号
071003 ;
摘要
Resting-state EEG signals undergo rapid transition processes (RTPs) that glue otherwise stationary epochs. We study the fractal properties of RTPs in space and time, supporting the hypothesis that the brain works at a critical state. We discuss how the global intermittent dynamics of collective excitations is linked to mentation, namely non-constrained non-taskoriented mental activity.
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页数:9
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