37 search results - page 4 / 8 » Estimability of Spatio-temporal Activation in fMRI |
ISBI
2002
IEEE
15 years 10 months ago
2002
IEEE
Hemodynamic Response Function (HRF) estimation in noisy functional Magnetic Resonance Imaging (fMRI) is essential for a better understanding of cerebral activations. Previous work...
101
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TMI
2010
14 years 4 months ago
2010
Within-subject analysis in fMRI essentially addresses two problems, the detection of brain regions eliciting evoked activity and the estimation of the underlying dynamics. In [1, 2...
ISBI
2004
IEEE
15 years 10 months ago
2004
IEEE
Despite its potential advantages for fMRI analysis, fuzzy C-means (FCM) clustering suffers from limitations such as the need for a priori knowledge of the number of clusters, and ...
NIPS
2007
14 years 11 months ago
2007
We construct a biologically motivated stochastic differential model of the neural and hemodynamic activity underlying the observed Blood Oxygen Level Dependent (BOLD) signal in Fu...
101
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ICASSP
2009
IEEE
14 years 7 months ago
2009
IEEE
In this paper, a novel non-stationary model of functional Magnetic Resonance Imaging (fMRI) time series is proposed. It allows us to account for some putative habituation effect a...