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	Cortical network dynamics during foot movements
	Fallani, Fabrizio De Vico ; Astolfi, Laura ; Cincotti, Febo ; Mattia, Donatella ; Marciani, Maria Grazia ; Tocci, Andrea ; Salinari, Serenella ; Witte, Herbert ; Hesse, Wolfram ; Gao, Shangkai ; Colosimo, Alfredo ; Babiloni, Fabio
	2010-05-11 ; 2010-05-11
关键词	high-resolution EEG adaptive MVAR Granger causality graph theory HIGH-RESOLUTION EEG MAGNETIC-RESONANCE IMAGES FUNCTIONAL CONNECTIVITY COMPLEX NETWORKS HEAD MODEL BRAIN CONNECTIVITY PATTERNS AREAS SYNCHRONIZATION ORGANIZATION Computer Science, Interdisciplinary Applications Neurosciences
中文摘要	The present work intends to evaluate the dynamics of the cerebral networks during the preparation and the execution of the foot movement. In order to achieve this objective, we have used mathematical tools capable of estimating the cortical activity via high-resolution EEG techniques. Afterwards we estimated, the instantaneous relationships occurring among the time-series of sixteen regions of interest (ROIs) in the Alpha (7-12 Hz) and Beta (13-29 Hz) band through the adaptive multivariate autoregressive models. Eventually, we evaluated the weighted-topology of the cerebral networks by calculating some theoretical graph indexes. The results show that the main structural changes are encoded in the highest spectral contents (Beta band). In particular, during the execution of the foot movement the cingulate motor areas (CM) work as network "hubs" presenting a large amount of outgoing links to the other ROIs. Moreover, the connectivity pattern changes its structure according to the different temporal stages of the task. In particular, the communication between the ROIs reaches its highest level of efficiency during the preparation of the foot movement, as revealed by the "small-world" property of the network, which is characterized by the presence of abundant clustering connections combined with short average distances between the cortical areas.
语种	英语 ; 英语
出版者	HUMANA PRESS INC ; TOTOWA ; 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/27673]
专题	清华大学
推荐引用方式 GB/T 7714	Fallani, Fabrizio De Vico,Astolfi, Laura,Cincotti, Febo,et al. Cortical network dynamics during foot movements[J],2010, 2010.
APA	Fallani, Fabrizio De Vico.,Astolfi, Laura.,Cincotti, Febo.,Mattia, Donatella.,Marciani, Maria Grazia.,...&Babiloni, Fabio.(2010).Cortical network dynamics during foot movements..
MLA	Fallani, Fabrizio De Vico,et al."Cortical network dynamics during foot movements".(2010).

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