Effective connectivity

Definition: The effective connectivity is the causal influences that neural units exert over another (as opposed to functional connectivity that only describes associative relations between neuronal units). Several approaches are available for detecting and quantifying effective connectivity. These techniques allow researchers to examine how different regions of the brain are connected and often to estimate the strength and directionality of these connections, and in the case of dynamic connectivity, also their change over time or in response to different experimental manipulations.

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References:

https://doi.org/10.1089/brain.2011.0008

https://doi.org/10.1007/s11517-011-0739-x.

https://doi.org/10.1002/hbm.460010108

Related terms: Anatomical/Structural connectivity, Functional connectivity, Granger causality, dynamic causal modeling, partial directed coherence, directed transfer function, transfer entropy, dynamic functional connectivity, dynamic effective connectivity