[FieldTrip] negative connectivity strength from mvgc

Tyler Grummett tyler.grummett at flinders.edu.au
Wed Sep 9 10:52:21 CEST 2015


Hello fieldtrip experts,

I decided to try multivariate granger causality today, using the steps in the tutorial 'analysis of sensor- and source-level connectivity'. I noticed that I am getting negative connectivity measures in the granger.grangerspctrm. Is this normal? If so, why does this happen?

I apologise if this has been asked before!

Tyler



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