Search Results for author: Mark W. Greenlee

Found 3 papers, 1 papers with code

Forecasting Brain Activity Based on Models of Spatio-Temporal Brain Dynamics: A Comparison of Graph Neural Network Architectures

no code implementations8 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.

A Graph Neural Network Framework for Causal Inference in Brain Networks

1 code implementation14 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.

Causal Inference

A constrained ICA-EMD Model for Group Level fMRI Analysis

no code implementations22 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.

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