Extended time-frequency Granger causality for evaluation of functional network connectivity in event-related FMRI data.

M. Havlicek; J. Jan; V. D. Calhoun; M. Brazdil

Extended time-frequency Granger causality for evaluation of functional network connectivity in event-related FMRI data.

M. Havlicek, J. Jan, V. D. Calhoun, M. Brazdil

Research output: Contribution to journal › Article › peer-review

Abstract

In this article, we show that adaptive multivariate autoregressive (AMVAR) modeling accompanied by proper estimation of the delay and the width of hemodynamic response function is an effective technique for evaluation of spectral Granger causality among different functional brain networks identified by independent component analysis from event-related fMRI data. The entire concept is demonstrated on 28 subjects auditory oddball fMRI data.

Original language	English (US)
Pages (from-to)	4440-4443
Number of pages	4
Journal	Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference
State	Published - 2009
Externally published	Yes

ASJC Scopus subject areas

Computer Vision and Pattern Recognition
Signal Processing
Biomedical Engineering
Health Informatics

Cite this

Havlicek, M., Jan, J., Calhoun, V. D., & Brazdil, M. (2009). Extended time-frequency Granger causality for evaluation of functional network connectivity in event-related FMRI data. Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference, 4440-4443.

Extended time-frequency Granger causality for evaluation of functional network connectivity in event-related FMRI data. / Havlicek, M.; Jan, J.; Calhoun, V. D. et al.
In: Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference, 2009, p. 4440-4443.

Research output: Contribution to journal › Article › peer-review

Havlicek, M. ; Jan, J. ; Calhoun, V. D. et al. / Extended time-frequency Granger causality for evaluation of functional network connectivity in event-related FMRI data. In: Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference. 2009 ; pp. 4440-4443.

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Extended time-frequency Granger causality for evaluation of functional network connectivity in event-related FMRI data.

Abstract

ASJC Scopus subject areas

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