Your English writing platform
Discover LudwigSimilar(58)
Granger causality estimates the causal effect of the seed region on every other voxel in the brain (X to Y effect), as well as the Y to X effect, the causal effect of every voxel in the brain (Y) on the seed region (X).
Relatively weak influences should only marginally distort any relationships while strong causal influences will likely have a profound affect on causality estimates.
The correlations between Granger causality estimates were then also computed on different segments of the data.
Similarly, weights below 15 mV produce negligible changes in causality estimates using PGC.
As a first step, we compare Granger causality estimated from the highest frequency spike signals with Granger causality calculated from filtered spike signals.
We then compute correlation coefficients between functional connectivity (Granger causality) estimated from different segments at varying levels of low-pass filtering (Fig. 2A and B).
Hence it is possible that an increase in firing rate may sometimes result in a decrease in causality estimates and vice versa.
Granger causality estimates the directed synchronization between 2 regions.
Granger causality estimates were then taken to the group level, and statistical tests were conducted as described for power.
Lozano et al. proposed an approach that uses the group lasso and the notion of Granger causality to estimate causality among variables instead of estimating the entire sequence of networks (Lozano et al., 2009).
Intracranial EEG recordings were analyzed with a multivariate autoregressive modeling technique (short-time direct directed transfer function SdDTF), based on the concept of Granger causality, to estimate the directionality and intensity of propagation of high frequency activity (70 175 Hz) during ictal and interictal recordings.
Write better and faster with AI suggestions while staying true to your unique style.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com