Assessing cortical functional connectivity by partial directed coherence:: Simulations and application to real data
Assessing cortical functional connectivity by partial directed coherence:: Simulations and application to real data
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DOI：
10.1109/tbme.2006.873692
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发表时间：
2006-09-01
影响因子：
4.6
通讯作者：
Babiloni, Fabio
中科院分区：
文献类型：
--
作者：
Astolfi, Laura;Cincotti, Febo;Babiloni, Fabio
本文的目的是测试一种技术称为部分定向相干（PDC）和它的修改（平方PDC; sPDC）的人类大脑皮层连接估计通过模拟研究，其中PDC和sPDC进行了研究方差分析。进行的统计分析返回，PDC和sPDC都能够正确地估计施加的连接模式时，数据表现出至少3的信噪比和至少27 s的长度的非连续记录在250 Hz的采样率，相当于，更一般地说，6750个数据样本。
The aim of this paper is to test a technique called partial directed coherence (PDC) and its modification (squared PDC; sPDC) for the estimation of human cortical connectivity by means of simulation study, in which both PDC and sPDC were studied by analysis of variance. The statistical analysis performed returned that both PDC and sPDC are able to estimate correctly the imposed connectivity patterns when data exhibit a signal-to-noise ratio of at least 3 and a length of at least 27 s of nonconsecutive recordings at 250 Hz of sampling rate, equivalent, more generally, to 6750 data samples.