Niskanen Eini I, Tarvainen Mika P, Kononen Mervi, Soininen Hilkka, Karjalainen Pasi A
Department of Physics, University of Kuopio, Kuopio, Finland.
Annu Int Conf IEEE Eng Med Biol Soc. 2007;2007:5485-8. doi: 10.1109/IEMBS.2007.4353587.
In this paper, we present a subspace approach for functional magnetic resonance imaging (fMRI) time series analysis. The signal subspace is formed of the eigenvectors of data correlation matrix. The approach is utilized both for single-trial estimation of blood oxygenation level dependent (BOLD) responses in fMRI time series and for studying the functional connectivity of BOLD responses from different spatial areas.
在本文中,我们提出了一种用于功能磁共振成像(fMRI)时间序列分析的子空间方法。信号子空间由数据相关矩阵的特征向量构成。该方法既用于fMRI时间序列中血氧水平依赖(BOLD)反应的单次试验估计,也用于研究来自不同空间区域的BOLD反应的功能连接性。