Evaluation of Functional Network Connectivity in Event-related fMRI Data based in ICA and Time-frequency Granger Causality

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Authors

HAVLÍČEK Martin JAN Jiří CALHOUN Vince BRÁZDIL Milan MIKL Michal

Year of publication 2009
Type Article in Proceedings
Conference IFMBE Proceedings - World Congress on Medical Physics and Biomedical Engineering
MU Faculty or unit

Faculty of Medicine

Citation
Field Neurology, neurosurgery, neurosciences
Keywords fMRI; ICA; spectral; Granger; adaprive
Description In this article we show that Adaptive Multivariate Autoregressive (AMVAR) modeling accompanied by proper preprocessing is an effective technique for evaluation of spectral Granger causality among functional brain networks identified by independent component analysis from event-related fMRI data.
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