Effective connectivity and brain modeling by FMRI
Résumé
The concept of effective connectivity pe
rmits to study specific circuits in
networks which define in a more real
istic way the dynamics of the central
nervous system, which underlie various
cerebral functions. Assessment of
effective connectivity measur
es provides the unique oppor
tunity to determine the
functional influences among anatomical
brain regions. Connectivity between
brain regions is estimated using models based on anatomically motivated
assumptions. Structural equation modeling
(SEM) is a statistical method proposed
to analyze effective connectivity in fMRI