"New perspectives for analyzing fMRI signals: simultaneous EEG / fMRI acquisitions and fMRI functional connectivity" Christophe Grova (Video)

This offers a unique opportunity to study neurovascular coupling processes. It is the link between bioelectric activity of neurons and hemodynamic brain response. We will begin by presenting the technical challenges related to this type of acquisition and the necessary pre-processing of data (denoising of EEG data in particular). We will show how to analyze fMRI data from markers detected in EEG (epileptic activity, brain rhythms) before presenting results on the level of spatial concordance between EEG signal generators and corresponding hemodynamic responses.
We will begin by presenting the technical challenges related to this type of acquisition and the necessary pre-processing of data (denoising of EEG data in particular). We will show how to analyze fMRI data from markers detected in EEG (epileptic activity, brain rhythms) before presenting results on the level of spatial concordance between EEG signal generators and corresponding hemodynamic responses. The second part of the conference will focus on the analysis of slow fluctuations of fMRI resting signals in so-called functional connectivity studies. We will present the very structured organization of these networks at rest, the techniques to highlight such a structure, as well as their potentially very promising role as new biomarkers of certain pathologies. Most of the methods presented will be illustrated using data acquired in the context of the surgical management of epileptic patients.

Video 1   Video 2