no code implementations • 8 Dec 2021 • Simon Wein, Alina Schüller, Ana Maria Tomé, Wilhelm M. Malloni, Mark W. Greenlee, Elmar W. Lang
We evaluate the performance of the GNN models on a variety of scenarios in MRI studies and also compare it to a VAR model, which is currently often used for directed functional connectivity analysis.
1 code implementation • 14 Oct 2020 • Simon Wein, Wilhelm Malloni, Ana Maria Tomé, Sebastian M. Frank, Gina-Isabelle Henze, Stefan Wüst, Mark W. Greenlee, Elmar W. Lang
Moreover, dynamic interactions between different brain regions learned by this data-driven approach can provide a multi-modal measure of causal connectivity strength.
no code implementations • 22 Mar 2019 • Simon Wein, Ana Maria Tomé, Markus Goldhacker, Mark W. Greenlee, Elmar W. Lang
The results of the proposed workflow are then compared to those obtained by a widely used group ICA approach for fMRI analysis.