Sentence examples for directed connectivity from inspiring English sources
GIMME provides researchers with a powerful, flexible tool for identifying directed connectivity maps at the group and individual levels.
Finally, results are gauged using simulated data (Sect. 4) followed by further method illustration with directed connectivity disclosure using real fMRI resting state data.
In addition we show the source network and the directed connectivity of the background frequency oscillations for continuous spikes and waves during slow wave sleep.
This directed connectivity reversal was successfully recovered across different algorithms, including Granger causality and Bayes network (IMAGES) approaches, and across fMRI ("raw" and deconvolved) and source-modeled MEG.
These results extend simulation studies of directed connectivity, and offer practical guidelines for the use of such methods in clarifying causal mechanisms of neural processing.
However, a host of methodological uncertainties have impeded the application of directed connectivity methods, which have primarily been validated via "ground truth" connectivity patterns embedded in simulated functional MRI (fMRI) and magneto-/electro-encephalography (MEG/EEG) datasets.
Figure 6 Nodes travel in the same direction or opposite direction in the direct connectivity case.
Namely, the emergence of pathological beta oscillations in Parkinson's disease (PD) and their characterisation with intracortical and non-invasive methods to examine the underlying directed functional connectivity (Granger causality) and effective connectivity (dynamic causal modelling).
As aforementioned, only if a node failure breaks its directed neighborhood connectivity, it may further break network connectivity.
2) Further discussion should be provided regarding the use of fMRI functional connectivity to study a manipulation that causes directed effective connectivity.
In what follows, we review recent developments in the analysis of directed functional connectivity with GC and TE, the analysis of directed effective connectivity with DCM and then consider the approaches in light of each other.
