Title :
Estimation of single-trial fMRI BOLD responses using combined EEG and fMRI measurements
Author :
Ranta-aho, Perttu O. ; Niskanen, Eini I. ; Georgiadis, Stefanos ; Könönen, Mervi ; Tarvainen, Mika P. ; Karjalainen, Pasi A.
Author_Institution :
Department of Physics, University of Kuopio, Finland
Abstract :
In this paper, we present a method for modeling human brain response using combined fMRI and EEG measurements. A subspace is formed using the eigenvectors of data correlation matrix of augmented measurements. This subspace is then used for regularization of the fitting of parametric model to fMRI BOLD signal. The approach is utilized for single-trial estimation of blood oxygenation level dependent (BOLD) responses in fMRI time series.
Keywords :
Brain modeling; Electroencephalography; Enterprise resource planning; Epilepsy; Hospitals; Humans; Neurophysiology; Physics; Scalp; Spatial resolution; Adult; Algorithms; Brain Mapping; Electroencephalography; Evoked Potentials, Visual; Humans; Magnetic Resonance Imaging; Male; Reproducibility of Results; Sensitivity and Specificity; Visual Cortex; Visual Perception;
Conference_Titel :
Engineering in Medicine and Biology Society, 2008. EMBS 2008. 30th Annual International Conference of the IEEE
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-1814-5
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2008.4649149
